WBCS Prelims 2009 Question Paper with Answers & Explanations

Explanation

The word vivacious is an adjective derived from the Latin root vivere, which means to live. It is used to describe someone who is attractively lively, animated, and full of spirit. When applied to children in a playground, it indicates that they are highly energetic, spirited, and active, making lively/full of life the most accurate synonym.

Explanation

The idiomatic phrasal verb "passed away" is a widely used, polite euphemism that means to die. The word "expired" is used in formal, medical, or literary contexts to indicate that someone has breathed their last or died. Therefore, in the context of someone dying after suffering from a prolonged illness, "expired" represents the closest synonym in meaning.

Explanation

The word sonorous is derived from the Latin word sonor, meaning sound. It is used to describe a voice, sound, or speech that is imposingly deep, rich, and full, or capable of producing a deep, resonant sound. When applied to a musician's voice, it highlights a pleasing, resonant quality that is full and deep.

Explanation

The idiomatic expression "by the sweat of one's brow" refers to achieving something through direct physical effort, diligent labor, or great exertion. Originating from the biblical book of Genesis, where it denotes the necessity of manual labor to earn a living, the phrase has evolved to represent earning one's livelihood through very hard work.

Explanation

The phrasal verb "tide over" means to survive, manage, or successfully get through a difficult situation or period of hardship. In the context of dealing with a crisis, it represents the ability to surmount or overcome the difficulties faced.

Explanation

The adjective true when used in the sense of being faithful, loyal, or constant to a promise, statement, or principle requires the preposition to. The idiomatic expression to be true to one's words means to keep one's promises and act in accordance with what one has said.

Explanation

The adjective vexed, which means annoyed, frustrated, or worried, is followed by the preposition with when the object of the annoyance is a person. In this sentence, the object is the son, who is a person, making with the grammatically correct choice to complete the phrase vexed with the son.

Explanation

A sonnet is a poetic form of fourteen lines, traditionally written in iambic pentameter. It follows a strict rhyme scheme and logical structure, classically divided into forms like the Petrarchan, which consists of an octave and a sestet, or the Shakespearean, which consists of three quatrains and a final couplet. The term originates from the Italian sonetto, which means a little song or sound.

Explanation

The word misanthropist originates from the Greek words misos, meaning hatred, and anthropos, meaning human being or mankind. A misanthropist is defined as a person who dislikes, distrusts, or hates humankind and avoids human society.

Explanation

The idiom poles apart is used to describe two people, things, or ideas that are as far apart as the geographical poles of the Earth. It signifies having completely opposite, contrasting, or incompatible viewpoints, opinions, or attitudes, which directly translates to being totally different in views.

Explanation

Horticulture is the branch of agriculture that deals with the art, science, technology, and business of plant cultivation. The term is derived from the Latin words hortus, meaning garden, and colere, meaning to cultivate. It specifically encompasses the cultivation, management, and study of gardens, including the production of fruits, vegetables, flowers, and ornamental plants.

Explanation

Philanthropy originates from the Greek words philein, meaning to love, and anthropos, meaning human or mankind. It refers to the desire to promote the welfare of others, expressed especially by the generous donation of money to good causes, representing a universal love for humanity and the whole world.

Explanation

The word abandoned is the most appropriate term because it means to completely and permanently leave someone or something, especially a dependent, without the intention of returning or providing care. While deserted also conveys the idea of leaving, abandoned is specifically used in the context of parents leaving a child to highlight the total relinquishment of responsibility and care.

Explanation

Astronomers are scientists who observe and study celestial bodies such as stars, planets, and galaxies. The term comes from the Greek roots astron, meaning star, and nomos, meaning law or arrangement, representing the scientific study of the universe beyond Earth's atmosphere.

Explanation

The term audience refers to a group of people assembled to watch or listen to a public event, such as a speech, concert, play, or lecture. In this context, the individuals gathered in the hall specifically to hear the speaker are described as the audience.

Explanation

The term theocracy is derived from the Greek words theos, which means god, and kratein, which means to rule. It describes a form of government where a deity is officially recognized as the supreme civil ruler, and daily administration and laws are guided by divine direction or by officials who are believed to be divinely guided.

Explanation

The idiomatic expression to go to the dogs means to deteriorate, decline significantly in quality, or ruin oneself. Conversely, to turn over a new leaf means to make a fresh start, reform ones behavior, and improve ones conduct or circumstances for the better, making it the opposite of ruin and decline.

Explanation

The term high-handed refers to someone who is overbearing, dictatorial, or domineering, using authority without considering the feelings or opinions of others. The direct opposite of this behavior is being humble, compliant, and amiable, which is accurately represented by the phrase submissive and friendly.

Explanation

The verb celebrated is the most appropriate word to complete the sentence because a birthday is an event or anniversary that is marked, honored, or observed with festivities, ceremonies, or special activities. In this context, Tagore's birth anniversary is traditionally commemorated with cultural programs involving the performance of his songs and the recitation of his poetry.

Explanation

The idiom "a bolt from the blue" refers to a sudden, unexpected, and usually shocking event or piece of news. The expression draws an analogy to a lightning bolt striking from a clear, cloudless blue sky, which is completely unforeseen and surprising.

Explanation

An epidemic is defined as the rapid spread of an infectious disease to a large number of people in a given population within a short period of time. This term is typically used when the number of cases of a disease in a specific geographic area or community exceeds what is normally expected.

Explanation

The verb smell (with the past participle form smelt) is used figuratively in English to mean to detect, suspect, or perceive something instinctively, especially when it is suspicious, bad, or wrong. This usage is common in idiomatic expressions such as to smell a rat or to smell trouble, where physical sensory perception represents intuitive awareness. In this context, using smelt indicates that the speaker immediately sensed or suspected that something was amiss upon arrival.

Explanation

The phrase whose appearance did not reflect his mind refers to someone whose outward look or behavior is misleading and does not show their true thoughts, feelings, or intentions. The word deceptive means giving an appearance or impression different from the true one, making it the most appropriate substitute for the described behavior.

Explanation

An anthology is defined as a published collection of poems, songs, or other pieces of writing. The term originates from the Greek word anthologia, which means a gathering of flowers, reflecting a selection of the finest literary pieces compiled into a single volume.

Explanation

A pedestrian is defined as a person traveling on foot, especially in an area also used by vehicles, or someone who makes a journey by walking.

Explanation

Water on the road surface acts as a lubricant between the rubber tires of the car and the road. This thin layer of water reduces the coefficient of friction, leading to a significant decrease in the frictional force or traction between the tires and the road surface. Without sufficient friction, the tires cannot grip the road effectively, making steering, handling, and braking highly difficult at high speeds.

Explanation

Cyclone Nargis was an extremely destructive category 4 tropical cyclone that made landfall in Myanmar on May 2, 2008. It crossed the low-lying Irrawaddy river delta region in southern Myanmar, causing catastrophic storm surges, widespread devastation, and a tragic loss of over 138,000 lives. It is recorded as the deadliest named cyclone in the North Indian Ocean basin.

Explanation

The Ganga-Brahmaputra Delta, also known as the Ganges Delta, the Sunderbans Delta, or the Bengal Delta, is the largest river delta in the world. It covers an area of approximately 105,000 square kilometers, spanning across Bangladesh and the Indian state of West Bengal. This highly fertile region is formed by the confluence of the Ganga, Brahmaputra, and Meghna river systems, which carry massive volumes of sediment from the Himalayas down to the Bay of Bengal.

Explanation

The Gadar Party was an international political movement founded by expatriate Indians in 1913 to overthrow British rule in India. It was established in San Francisco, California, in the United States of America, initially under the name of the Pacific Coast Hindustan Association, with key founding leaders including Lala Har Dayal, Sohan Singh Bhakna, and Pandit Kanshi Ram. The headquarters of the party was named Yugantar Ashram, and the movement published a weekly journal called The Ghadar to propagate nationalist ideas and incite revolution among Indian soldiers and the expatriate community.

Explanation

The weight of an object is defined as W = mg, where m is the mass of the object and g is the acceleration due to gravity. The acceleration due to gravity at a distance r from the center of the Earth, where r ≥ R (with R being the radius of the Earth), is given by g = (GM)/(r²), which decreases as height increases above the surface. Below the surface (r < R), the acceleration due to gravity is given by g = (GMr)/(R³), which decreases linearly as depth increases toward the center. Thus, g reaches its maximum value at the surface of the Earth where r = R, making the weight of the object maximum at the surface of the earth.

Explanation

The United Nations General Assembly declared 2008 as the International Year of Sanitation to accelerate progress on the Millennium Development Goals, particularly the target of halving the proportion of people without access to basic sanitation by 2015. This initiative aimed to raise global awareness, secure political commitments, and mobilize resources to address the sanitation crisis, highlighting that clean, safe, and dignified sanitation is fundamental to human health, survival, and economic development.

Explanation

The Chotanagpur Plateau is an ancient continental plateau that forms the northeastern projection of the Indian Peninsula. It is composed primarily of Precambrian rocks, specifically Archaean granites and gneisses, which are old igneous and metamorphic rocks. These ancient crystalline rocks have undergone significant metamorphism and deformation over billions of years, forming the stable shield structure of the plateau.

Explanation

The World Trade Organization (WTO) was officially established on January 1, 1995, following the Marrakesh Agreement signed on April 15, 1994. This agreement concluded the Uruguay Round of multilateral trade negotiations, which spanned from 1986 to 1994, and replaced the General Agreement on Tariffs and Trade (GATT) created in 1948.

Explanation

According to Boyle's law, for a given mass of an ideal gas at constant temperature, the volume of the gas is inversely proportional to its pressure. This relationship is mathematically expressed as:

PV = k

where P is the pressure, V is the volume, and k is a constant. This can also be written as:

V ∝ (1)/(P)

Consequently, when the pressure of the gas decreases, its volume must increase to keep the product of pressure and volume constant.

Explanation

Asif Ali Zardari is a prominent Pakistani politician who served as the 11th President of Pakistan from 2008 to 2013. He rose to political prominence as the husband of Benazir Bhutto, the former Prime Minister of Pakistan. Following her assassination in December 2007, Zardari assumed the leadership of the Pakistan People's Party (PPP) as its co-chairman, leading the party to victory in the 2008 general elections and subsequently being elected as the President of Pakistan.

Explanation

Following the division of the Midnapore district into Purba Medinipur and Paschim Medinipur on 1 January 2002, the total number of districts in West Bengal became 19. This count of 19 districts remained unchanged until the creation of Alipurduar district in June 2014.

Explanation

The Communal Award was announced by the British Prime Minister Ramsay MacDonald on 16 August 1932. This policy granted separate electorates in British India for various minority communities, including Muslims, Sikhs, Indian Christians, Anglo-Indians, Europeans, and the Depressed Classes. It was introduced following the failure of Indian representatives to reach an agreement on minority representation during the Second Round Table Conference.

Explanation

When a small quantity of water is placed in a cavity in a block of ice at 0°C, the ice block acts as a cold reservoir. If the water's temperature is initially above 0°C, it will first cool down to 0°C. Once the water reaches 0°C, it will start to freeze, releasing latent heat of fusion, which is absorbed by the surrounding ice, causing a small amount of ice to melt. This process will continue until all the water freezes to ice at 0°C, as the large block of ice can effectively absorb the latent heat without changing its own temperature.

Explanation

Hezbollah is a Shia Islamist political party and militant group based in Lebanon. It was founded in the early 1980s, largely in response to the Israeli invasion of Lebanon in 1982, with significant assistance from Iran's Islamic Revolutionary Guard Corps. Over the years, Hezbollah has grown into a powerful organization with a strong political presence in the Lebanese government, a vast social services network, and a highly trained military wing that operates within Lebanon.

Explanation

The Farakka Barrage was constructed across the Ganges River in West Bengal to divert water into the Bhagirathi-Hooghly river system through a 38-kilometer-long feeder canal. The primary objective of this diversion is to increase the dry-season flow of the Hooghly River, which helps flush out accumulated silt and sediment. This process is essential to maintain the depth and navigability of the Hooghly River, thereby ensuring the survival and smooth operations of the Kolkata Port.

Explanation

The Eighth Five-Year Plan (1992–1997) marked the real introduction of decentralized planning in India due to the passage of the 73rd and 74th Constitutional Amendment Acts of 1992. These historic amendments gave constitutional status to Panchayati Raj Institutions (PRIs) for rural areas and Urban Local Bodies (ULBs) for urban areas.

Under Article 243ZD of the Constitution, the establishment of District Planning Committees (DPCs) was mandated to consolidate developmental plans prepared by local bodies and draft comprehensive district-level plans. This constitutional backing successfully transformed the Indian planning process from a centralized, top-down structure into a participatory, bottom-up model, establishing a legal and functional framework for grassroots decentralization.

Explanation

The walls of a music hall are designed to reflect sound. Unlike lecture theatres or lecture halls where sound absorption is heavily prioritized to prevent echoes and maintain speech intelligibility, a music hall relies on sound reflection to create a rich, blended, and full acoustic experience. Controlled reflections help distribute the sound waves evenly across the entire auditorium, ensuring that the music reaches all members of the audience clearly and with sufficient volume without dying out prematurely.

Explanation

Dadabhai Naoroji was called the Grand Old Man of India due to his pioneering role in the Indian national movement and his intellectual contributions to the freedom struggle. As one of the prominent founders of the Indian National Congress, he served as its president three times. He was also the first Indian to be elected to the British House of Commons. Through his landmark book, Poverty and Un-British Rule in India, he formulated the drain of wealth theory, demonstrating how British economic policies systematically drained India's resources.

Explanation

Tata Motors completed the acquisition of the two iconic British premium passenger car brands, Jaguar and Land Rover, from the American automaker Ford Motor Company in June 2008 for a net consideration of approximately 2.3 billion USD, subsequently establishing them under the subsidiary Jaguar Land Rover.

Explanation

During radioactive disintegration, an unstable atomic nucleus transitions from a high-energy excited state to a lower, more stable energy level. This nuclear transition releases excess energy in the form of high-energy, high-frequency electromagnetic radiation known as gamma rays (represented as γ-rays). This process, called gamma decay, represents the release of electromagnetic photons directly from within the nucleus itself.

Explanation

According to the 2001 Census of India, West Bengal had the highest population density among all the states of India, recording 903 persons per square kilometer. Among other major states during this census, Bihar registered a density of 881 persons per square kilometer, Kerala registered 819 persons per square kilometer, Uttar Pradesh registered 689 persons per square kilometer, and Maharashtra registered 314 persons per square kilometer.

Explanation

During the launch of the Quit India Movement on August 8, 1942, at the Gowalia Tank Maidan in Bombay, Mahatma Gandhi delivered a historic speech in which he gave the famous slogan "Do or Die" (Karo ya Maro). He urged the people of India to make every effort to achieve independence, declaring that they must either free the country or die in the attempt, which galvanized the nation toward immediate self-rule.

Explanation

The time shown by the mirror image of a clock can be directly calculated using the standard relation:

Mirror Time = 11:60 - Actual Time

Substituting the given actual time of 4:25 into the formula:

11:60 - 4:25 = 7:35

Subtracting the minutes from 60 and the hours from 11 provides the correct mirrored time of 7:35.

Explanation

To find the number of 0s in the series that are preceded and followed by digits that differ by at most 1, we treat the series as a continuous sequence of digits:

2, 0, 3, 2, 7, 8, 6, 0, 8, 2, 0, 9, 8, 2, 8, 0, 7, 2, 3, 4, 0, 4, 3, 0, 7

There are six 0s in this sequence. Let us examine the preceding and following digits for each:

The first 0 (in 203) is preceded by 2 and followed by 3. The difference is |2 - 3| = 1. This qualifies.

The second 0 (in 608) is preceded by 6 and followed by 8. The difference is |6 - 8| = 2. This does not qualify.

The third 0 (in 209) is preceded by 2 and followed by 9. The difference is |2 - 9| = 7. This does not qualify.

The fourth 0 (between 828 and 072) is preceded by 8 and followed by 7. The difference is |8 - 7| = 1. This qualifies.

The fifth 0 (between 340 and 4307) is preceded by 4 and followed by 4. The difference is |4 - 4| = 0. Since the digits are identical, they do not differ, so this does not satisfy the condition of having preceding and following digits that differ.

The sixth 0 (in 4307) is preceded by 3 and followed by 7. The difference is |3 - 7| = 4. This does not qualify.

Thus, there are exactly 2 such 0s in the series.

Explanation

The southwest monsoon is the principal rain-bearing wind system in India, driven by the intense heating of the South Asian landmass during summer. This thermal contrast creates a low-pressure zone over northwestern India, drawing moisture-laden winds from the high-pressure region over the southern Indian Ocean. These winds cross the equator, deflect northeastward due to the Coriolis force, and sweep across the Indian subcontinent. Starting around the beginning of June at the southern tip, the monsoon system covers the entire country by mid-July and remains active through September, bringing the vast majority of India's annual precipitation during this period.

Explanation

Sardar Vallabhbhai Patel served as the first Deputy Prime Minister of India from 15 August 1947 until his demise on 15 December 1950. Simultaneously holding the office of the Minister of Home Affairs, he played a historic role in the political integration of the nation by successfully negotiating the merger of over 500 princely states into the Indian Union.

Explanation

Let the six seats around the circular table be numbered 1 to 6 in a clockwise order, with all persons facing towards the center.

Placing Arun at position 1 means Kanchan, who is directly opposite to Arun, is at position 4.

Since Satyen is seated to the right of Kanchan, who faces the center from position 4, Satyen must be at position 3.

Prasun sits to the left of Arun. Since Arun faces the center from position 1, his left corresponds to position 2, placing Prasun at position 2.

Mithun is adjacent to Arun. Because position 2 is already occupied by Prasun, Mithun must be placed at position 6.

The only remaining seat, position 5, is occupied by Naren.

The person sitting directly opposite to Naren at position 5 is Prasun at position 2.

Explanation

Let the six positions around the circular table be numbered 1 to 6 in a clockwise direction, with all persons facing the center of the table.

Place Arun at position 1. Since Kanchan sits directly opposite to Arun, Kanchan must be at position 4.

Prasun sits at the left of Arun. For a person facing the center at position 1, the left direction is clockwise, which corresponds to position 2. Thus, Prasun is at position 2.

Satyen is at the right of Kanchan. For a person facing the center at position 4, the right direction is counter-clockwise, which corresponds to position 3. Thus, Satyen is at position 3.

Arun sits adjacent to Mithun. Since Arun is at position 1, his adjacent positions are 2 and 6. Position 2 is already occupied by Prasun, so Mithun must be placed at position 6.

The remaining position 5 is occupied by Naren.

Analyzing the positions in order, we have Arun at 1, Prasun at 2, Satyen at 3, Kanchan at 4, Naren at 5, and Mithun at 6. The person sitting between Prasun at position 2 and Kanchan at position 4 is Satyen at position 3.

Explanation

Normal saline, also known as physiological saline, is an isotonic solution commonly used in medicine because its osmotic pressure is equivalent to that of human blood plasma and body fluids. While the standard concentration of normal saline is generally recognized as 0.9% weight/volume of sodium chloride, physiological saline in various mammalian and general biology contexts is often defined within the range of 0.84% to 0.9%. This specific concentration ensures that red blood cells remain in osmotic equilibrium, preventing swelling or shrinking when the solution is introduced into the body.

Explanation

Force India was a Formula One racing team established in October 2007 when a consortium led by Indian businessman Vijay Mallya and Michiel Mol purchased the Spyker F1 team. It made its debut in the 2008 Formula One World Championship, representing India as the country's first-ever Formula One constructor.

Explanation

The Deccan Trap region is characterized by the widespread presence of black soil, also known as regur or black cotton soil. This soil is formed by the weathering of basaltic lava from volcanic eruptions and is exceptionally rich in clay, which gives it an outstanding ability to retain moisture for long periods. Cotton is a deep-rooted crop that thrives in soils with high water-holding capacity, especially during dry spells. Additionally, the tropical climate of the Deccan Plateau, with its moderate rainfall, high temperatures, and long frost-free days, provides the optimal ecological conditions required for high-yield cotton cultivation.

Explanation

The three-tier Panchayati Raj System, established in India under the 73rd Constitutional Amendment Act of 1992, organizes local self-government into three distinct levels. The Panchayat Samiti serves as the intermediate or middle tier of this system, operating at the block or taluka level. It acts as a crucial coordinating link between the village-level Gram Panchayats and the district-level Zilla Parishad, executing developmental plans and administering various government welfare schemes across the block.

Explanation

Water is the primary chemical component of the human body, accounting for approximately 60% to 66% of total body weight in an average adult. This percentage can vary depending on age, gender, and body composition, with infants having a higher proportion of water (around 75% to 78%) and older adults having a lower proportion. On average, the water content is roughly equivalent to two-thirds of the body weight, making 66% the most accurate representation.

Explanation

Rakhaldas Banerjee, an archaeologist with the Archaeological Survey of India, discovered the ancient site of Mohenjo-daro in 1922. His excavation of a Buddhist stupa at the site revealed much older prehistoric remains beneath it. This crucial discovery, alongside Daya Ram Sahni's excavation of Harappa, provided the physical evidence that established the existence of the Indus Valley Civilization to the world.

Explanation

The All India Forward Bloc was founded by Subhas Chandra Bose on May 3, 1939. Following his resignation from the presidency of the Indian National Congress at the Tripuri session in 1939 due to growing ideological differences with the Congress high command, Bose established this faction to bring together the progressive and left-wing elements within the national movement to launch a more militant struggle against British rule.

Explanation

Kandla Port, situated in the Gulf of Kutch in Gujarat, is one of India's major ports on the west coast. It was developed in the 1950s as a premier tidal port to handle the high volume of cargo traffic for western and northwestern India, particularly serving as a crucial hub for the import of petroleum, chemicals, and iron, as well as the export of food grains and salt.

Explanation

Goitre is a condition characterized by the abnormal enlargement of the thyroid gland, which is primarily caused by a deficiency of nutritional iodine. The thyroid gland relies on iodine as a fundamental building block to synthesize essential thyroid hormones such as thyroxine. When the body lacks sufficient iodine, the pituitary gland secretes excess thyroid-stimulating hormone to compensate, which overstimulates the thyroid gland and causes it to swell. Administering iodine therapy helps restore normal thyroid hormone production and prevents or reduces the enlargement of the gland.

Explanation

Iron was unknown to the people of the Indus Valley Civilisation, which was a Bronze Age civilisation flourishing from around 2500 BCE to 1900 BCE. The technology to smelt and utilise iron developed in the Indian subcontinent much later, during the Later Vedic period around 1000 BCE. Archaeological excavations across all major Harappan sites have yielded no evidence of iron tools, weapons, or implements, confirming that iron metallurgy was not yet discovered during this era.

Explanation

The office of the Deputy Prime Minister is not a constitutional office and does not find any mention in the text of the Constitution of India. It is an extra-constitutional post created purely for political convenience and stability. The individual appointed as the Deputy Prime Minister takes the oath of office and secrecy as a Union Cabinet Minister, and the designation does not confer any constitutional status or specific executive authority beyond that of a regular Cabinet Minister.

Explanation

The first heavy electrical equipment manufacturing plant in the public sector was established at Bhopal. Registered initially as Heavy Electricals (India) Limited in August 1956, the facility was set up with technical collaboration from Associated Electrical Industries of the United Kingdom. The factory began its manufacturing operations in November 1960. Heavy Electricals (India) Limited was later merged with Bharat Heavy Electricals Limited in 1974.

Explanation

Fullerene is a pure elemental form of carbon, making it one of the major carbon allotropes alongside diamond and graphite. Its molecules are composed entirely of carbon atoms structured in hollow shapes, which can be spherical, ellipsoid, or cylindrical. The most prominent example is Buckminsterfullerene (C_60), which consists of sixty carbon atoms arranged in a series of interlocking hexagons and pentagons resembling a soccer ball. Because it consists solely of carbon atoms bonded together in a specific, unique structural arrangement, it is classified as an allotrope of carbon.

Explanation

Sardar Vallabhbhai Patel is known as the Iron Man of India due to his crucial role in the political integration of India. Following independence, he successfully persuaded and integrated over 560 self-governing princely states into the Indian Union with immense determination, diplomatic skills, and firmness, thereby preventing the fragmentation of the nation.

Explanation

Let the boys be arranged in increasing order of height from left to right, meaning shorter boys are on the left and taller boys are on the right.

Since Bratin is taller than Arabinda, Arabinda is located to the left of Bratin. Arabinda is in the 10th position from the left end, meaning there are 9 boys to his left.

Since there are exactly 3 boys between Arabinda and Bratin, the position of Bratin from the left end, denoted as L_B, is:

L_B = 10 + 3 + 1 = 14

Bratin is in the 7th position from the right end, meaning R_B = 7.

The total number of boys N in the row is calculated using the relation:

N = L_B + R_B - 1

N = 14 + 7 - 1 = 20

Explanation

Nuclear fission is the process utilized in nuclear power reactors to generate electricity. During this reaction, a heavy nucleus, typically uranium-235 or plutonium-239, absorbs a neutron and splits into two lighter nuclei. This splitting releases a significant amount of kinetic energy, gamma radiation, and additional free neutrons. The released neutrons can induce fission in neighboring fissile nuclei, sustaining a controlled chain reaction that continuously produces heat to generate steam and drive electricity-generating turbines.

Explanation

The Early Vedic period, which witnessed the composition of the oldest Vedic text, the Rigveda, is dated between 1500 B.C. and 1000 B.C. This era marks the beginning of the Vedic civilization in the Indian subcontinent, where hymns in praise of various deities were composed in Vedic Sanskrit and transmitted orally before being compiled in written form in later periods.

Explanation

Bamboo is the primary forest-based raw material utilized in the Indian paper industry. Due to a shortage of softwoods, which typically grow in temperate climates and are the global standard for producing high-quality paper, India heavily relies on bamboo. Bamboo possesses high cellulose content, a fast growth cycle, and relatively long fibers compared to other non-wood alternatives, making it highly suitable for manufacturing strong and durable paper in large quantities.

Explanation

Vitamin C is chemically known as ascorbic acid, which is a vital water-soluble organic compound. It serves as an essential nutrient in humans, functioning as a powerful antioxidant and a co-factor in several key enzymatic reactions, including the synthesis of collagen, which is crucial for the health of connective tissues, skin, blood vessels, and bones. Since the human body cannot synthesize ascorbic acid endogenously, it must be obtained through dietary sources such as citrus fruits, berries, and leafy green vegetables.

Explanation

Interest payments constitute the single largest item of expenditure under the Revenue Account of the Union Budget of India. In the Union Budget of 2009–10, the allocation for interest payments was over Rs 2,25,000 crore, making it the highest expenditure head in the revenue account. This high expenditure is driven by the significant volume of outstanding internal and external debt accumulated by the government over successive fiscal years, requiring substantial annual debt servicing costs that surpass allocations for other major sectors like defence, subsidies, and social services.

Explanation

Binoy Basu, along with Badal Gupta and Dinesh Gupta, launched a daring attack on the Writers' Buildings in Calcutta on 8 December 1930. Dressed in European attire, the three revolutionaries entered the secretariat building and shot dead the notorious Inspector General of Prisons, Colonel N.S. Simpson, who was targeted for his brutal treatment of Indian political prisoners in jails.

Explanation

Carbon dioxide is a major greenhouse gas that plays a critical role in trapping heat in the Earth's atmosphere. Human activities, particularly the combustion of fossil fuels, deforestation, and industrial processes, have led to a massive increase in the concentration of carbon dioxide in the atmosphere. This excessive addition of carbon dioxide enhances the natural greenhouse effect by absorbing and re-emitting outgoing infrared radiation back toward the Earth's surface, leading to global warming and climate change.

Explanation

Historically, the term Aryan has been associated with various interpretations. In classical nineteenth-century scholarship, particularly influenced by early European indologists like Max Müller, the term Aryan was designated to represent a distinct race of people characterized by specific cultural and physical traits. Although modern scientific and linguistic consensus defines Aryan strictly as a language or speech group, traditional and older academic curricula frequently referred to it as a race. The word itself is derived from the Sanskrit term Arya, which translates to noble or respectable.

Explanation

North-East India is the premier tea-producing region of the country, accounting for nearly three-fourths of India's total tea production. This region possesses ideal agro-climatic conditions for tea cultivation, including fertile alluvial soils, high humidity, and abundant, well-distributed rainfall. Assam, located in this region, is the single largest tea-producing state in India and alone contributes more than half of the national output, while neighboring tea-growing areas in the northeastern foothills further bolster this dominant share.

Explanation

To be recognized as the official Opposition Party in the Lok Sabha, a political party must secure at least 10 per cent of the total strength of the House. This rule, known as the Mavalankar Rule, was established by the first Speaker of the Lok Sabha, G.V. Mavalankar, and was subsequently codified under the Salary and Allowances of Leaders of Opposition in Parliament Act, 1977. With the total strength of the Lok Sabha being 543, a party must win at least 55 seats to claim the official status of the Opposition Party and for its leader to be officially designated as the Leader of the Opposition.

Explanation

The edible portion of a coconut is the endosperm. In a coconut, the endosperm exists in two distinct forms during its development. The liquid part, commonly known as coconut water, is the free-nuclear endosperm containing thousands of nuclei. As the fruit matures, these nuclei cellularize and deposit along the inner chamber wall to form the solid endosperm, which is the white fleshy kernel or coconut meat. Both the liquid and solid endosperm serve to nourish the developing embryo.

Explanation

The Tripitaka, meaning Three Baskets, constitutes the formal term for the earliest collection of Buddhist scriptures. These texts were recorded and preserved in the Pali language, a Middle Indo-Aryan liturgical language that served as the primary medium for the oral transmission and subsequent writing of the Buddha teachings within the Theravada Buddhist tradition.

Explanation

The Vernacular Press Act was enacted in 1878 by Lord Lytton, who served as the Viceroy of India from 1876 to 1880. This legislation was designed to curb the freedom of the Indian-language press and prevent the expression of criticism toward British imperial policies, particularly during the Second Anglo-Afghan War. Often referred to as the Gagging Act, it empowered district magistrates to secure undertakings from publishers and confiscate their printing machinery if they published content deemed seditious or inciting disaffection against the government.

Explanation

The formula for the number of handshakes among n people, where everyone shakes hands with everyone else once, is given by the combination formula: (n(n - 1))/(2)

Given that the total number of handshakes is 120, we can set up the equation: (n(n - 1))/(2) = 120

Multiplying both sides by 2 yields: n(n - 1) = 240

We need to find two consecutive positive integers whose product is 240. Since the product of 16 and 15 is 240, the value of n is 16.

Explanation

Quinine is a natural alkaloid with powerful antimalarial properties extracted from the bark of the Cinchona tree, a genus of flowering plants in the family Rubiaceae native to the Andes of South America. The bark contains high concentrations of various alkaloids, including quinine, quinidine, cinchonine, and cinchonidine. These compounds are historically harvested by stripping the bark from the trunk and roots of the tree to be processed into medicine for treating malaria and other ailments.

Explanation

In Jainism, a Tirthankara is an enlightened savior and spiritual teacher who has conquered samsara and established a path for others to achieve liberation. According to Jain cosmology, each half-cycle of cosmic time sees the arrival of twenty-four Tirthankaras. The first of these spiritual preceptors was Rishabhanatha, and the twenty-fourth and final Tirthankara of the present era was Vardhamana Mahavira, who lived in the sixth century BCE.

Explanation

Dakshin Gangotri was established as India's first permanent scientific research base station in Antarctica. It was set up during the third Indian Expedition to Antarctica in 1983–1984. Named after the Gangotri Glacier, the station was subsequently decommissioned in 1990 after being buried under ice, and has since been utilized as a supply base.

Explanation

Article 112 of the Constitution of India mandates that the President shall, in respect of every financial year, cause to be laid before both the Houses of Parliament a statement of the estimated receipts and expenditure of the Government of India for that year. This document is constitutionally designated as the Annual Financial Statement and is commonly referred to as the Union Budget.

Explanation

The Ramsar Convention on Wetlands of International Importance is an international treaty adopted in the Iranian city of Ramsar in 1971. It provides the fundamental global framework for national actions and international cooperation to ensure the conservation and wise use of wetlands and their resources.

Explanation

Mahavira was the 24th and final Tirthankara of Jainism. He was born in the early 6th century BCE in Kundagrama near Vaishali and belonged to the Jnatrika clan. After attaining Kevala Jnana (omniscience) at the age of forty-two, he traveled extensively across India to preach the spiritual path of Jainism, emphasizing ahimsa (non-violence), satya (truth), asteya (non-stealing), aparigraha (non-attachment), and brahmacharya (celibacy). He attained Nirvana at Pavapuri.

Explanation

The Koyna Hydroelectric Project has a total installed capacity of 1,960 MW. Located in the Satara district of Maharashtra, the project consists of four operational stages utilizing the waters of the Koyna River, a tributary of the Krishna River. It features a massive underground power generation facility, with Stage IV alone contributing 1,000 MW to the total capacity, making it one of the largest completed hydroelectric power plants in India.

Explanation

Andhra Pradesh was the first state in India to be created on a linguistic basis on October 1, 1953. This followed a prolonged and intense agitation by the Telugu-speaking population of the Madras Presidency, who demanded a separate state to protect their cultural and linguistic identity. The movement reached a turning point following the 58-day fast unto death of the prominent activist Potti Sreeramulu in December 1952. His death triggered widespread protests and civil unrest, compelling the Government of India to concede to the demand and partition the Telugu-speaking northern districts of Madras State to form the new Andhra State.

Explanation

The Vernacular Press Act was passed in 1878 during the Viceroyalty of Lord Lytton. Designed to better control the vernacular press and punish seditious writing, the Act empowered the government to confiscate the printing press and equipment of any newspaper that published content deemed to incite disaffection against the British administration.

Explanation

The Eastern Himalayas form an integral part of the Himalayan global biodiversity hotspot, which is recognized as one of the most ecologically rich and sensitive regions in the world. Stretching across Nepal, Bhutan, Northeast India, and northern Myanmar, this region features an extraordinary variety of ecosystems due to extreme elevational gradients, ranging from alluvial grasslands and subtropical broadleaf forests to temperate forests and alpine meadows. It supports thousands of plant species, of which a high proportion are endemic, alongside a diverse array of threatened fauna such as the red panda, snow leopard, and golden langur.

Explanation

Mahapadmananda founded the Nanda dynasty in the Magadha region around 345 BCE after overthrowing the Shishunaga dynasty. Known as the first empire builder of Indian history, Buddhist and Puranic texts refer to him as Ugrasena and Ekarat, reflecting his vast conquests and the establishment of a highly centralized and powerful administration.

Explanation

Samachar Darpan was the first Bengali weekly newspaper, published on May 23, 1818, by the Baptist Missionary Society from Serampore. Edited by John Clark Marshman, the newspaper served as a pioneer in Bengali journalism, playing a key role in the growth of Bengali prose and the dissemination of regional and global news to the local population.

Explanation

According to the Census of India 2001, Sikkim recorded a sex ratio of 875 females per 1000 males. This represented the lowest female-to-male ratio among the states listed, reflecting a highly skewed gender distribution in the state at the time of the census.

Explanation

During the Vietnam War, the United States military carried out Operation Ranch Hand, a herbicidal warfare program. Agent Orange, a chemical defoliant made of equal parts of 2,4,5-T and 2,4-D, was sprayed in vast quantities over the dense tropical forests of Vietnam. The primary tactical objective of this aerial spraying was to defoliate the jungle canopy, stripping the trees of their leaves to eliminate the thick vegetation that provided cover and concealment for the enemy forces, thereby revealing their hiding places and supply routes.

Explanation

The Mauryan emperor Bindusara, who ruled from approximately 297 BCE to 273 BCE, assumed the Sanskrit title Amitraghata, which translates to slayer of enemies or destroyer of foes. Ancient Greek and Roman writers refer to him as Amitrochates or Alitrokates, which are phonetic transliterations of this royal title. He was the son of Chandragupta Maurya and the father of Ashoka the Great.

Explanation

Among the options provided, Punjab has experienced President's Rule the maximum number of times, having been placed under Article 356 of the Constitution on 8 separate occasions. The state holds the distinction of being the first in independent India to come under President's Rule, which was imposed on June 20, 1951. Punjab also spent a highly prolonged cumulative duration under central administration, totaling over 3,500 days, which included a continuous stretch of nearly five years from 1987 to 1992.

Explanation

During the erythrocytic cycle of the malaria parasite, mature schizonts rupture infected red blood cells to release merozoites and metabolic waste products, specifically haemozoin, into the blood plasma. This massive release of toxic foreign materials triggers a strong immune response, leading to a sudden rise in body temperature and severe shivering, known as rigor. Because the rupturing of red blood cells and subsequent release of parasites into the circulation peak during this paroxysm, a blood sample taken when the temperature rises with rigor contains the highest concentration of detectable parasites in the peripheral blood. This makes it the most favorable window for collecting blood to diagnose and obtain the malaria parasite.

Explanation

The All India Muslim League was founded on 30 December 1906 during the annual meeting of the All India Muhammadan Educational Conference in Dacca. The political party was established under the leadership of Nawab Salimullah of Dacca, Nawab Mohsin-ul-Mulk, and Nawab Viqar-ul-Mulk to protect and advance the political rights and interests of the Muslim community in British India.

Explanation

Let the third number be x.

The second number is thrice the third number, which is 3x. The first number is twice the second number, which is 2 × 3x = 6x.

The average of these three numbers is given as 10. Using the average formula:

(6x + 3x + x)/(3) = 10

¹⁰ˣ⁄₃ = 10

10x = 30

x = 3

The largest of the three numbers is the first number, which is 6x:

6 × 3 = 18

Explanation

The Prime Lending Rate is the interest rate that commercial banks charge their most creditworthy, low-risk corporate customers. Individual commercial banks determine this rate independently based on their own cost of funds, operational expenses, and profit margins, rather than it being set by the Reserve Bank of India.

Explanation

Acyl-CoA dehydrogenase is a mitochondrial flavoprotein that catalyzes the first step of fatty acid beta-oxidation. This enzyme requires flavin adenine dinucleotide (FAD) as a tightly bound prosthetic group to accept hydrogen atoms and electrons during the dehydrogenation of acyl-CoA to trans-2-enoyl-CoA. Riboflavin, also known as vitamin B2, is the essential precursor required for the synthesis of FAD, thereby serving as the constituent vitamin that forms this prosthetic group.

Explanation

Kanishka, the prominent ruler of the Kushan dynasty, introduced the Saka era in 78 CE to commemorate his ascension to the throne. This calendar era is historically significant and serves as the basis of the official Indian National Calendar, which was adopted by the Government of India in 1957. Kanishka's reign marked the peak of the Kushan Empire, and the initiation of this era remains one of his most lasting legacies.

Explanation

According to the Census of India, urban settlements are classified into six classes based on their population size. Class I towns, which are urban areas with a population of 100,000 and above, are designated as cities. This threshold differentiates a city from other lower-order urban settlements such as Class II through Class VI towns, which have smaller populations.

Explanation

The Anti-Defection Law was passed by the Parliament in 1985 through the 52nd Constitutional Amendment Act during the Prime Ministership of Rajiv Gandhi. This amendment added the Tenth Schedule to the Constitution of India, which was designed to curb political defections and bring stability to the legislative process by establishing provisions for disqualifying members of Parliament and state legislative assemblies who defect from one political party to another.

Explanation

Syed Mir Nisar Ali, widely known as Titu Mir, was a prominent leader of the Wahabi Movement in Bengal. After meeting the movement's pioneer, Syed Ahmad Barelvi, during a pilgrimage to Mecca in 1822, Titu Mir adopted its tenets and returned to Bengal in 1827 to preach and organize the peasantry. He championed the cause of local peasants and weavers against the heavy taxes and oppression imposed by local zamindars and British indigo planters, leading the historic Narkelberia Uprising in 1831, where he constructed his famous bamboo fort (Bansher Kella) to resist British forces.

Explanation

The primary excretory organs of a prawn are a pair of antennary glands, commonly referred to as green glands. These glands are located within the coxa of each antenna and function to filter nitrogenous wastes, primarily in the form of ammonia, from the blood and release them from the body, while also assisting in osmoregulation.

Explanation

Buddhacharita, an epic biography of Gautama Buddha written in the Sanskrit mahakavya style, was composed by the Buddhist philosopher, dramatist, and poet Asvaghosha in the early second century CE. Asvaghosha was a prominent intellectual who enjoyed the royal patronage of the Kushan Emperor Kanishka. His masterpiece vividly narrates the life of the Buddha from his birth in Lumbini to his attainment of enlightenment and ultimate Parinirvana, serving as a landmark work in Sanskrit literature and Buddhist history.

Explanation

New Mangalore Port is an artificial lagoon-type harbor located at Panambur in Karnataka, along the west coast of India. Established as a major port in 1974, it was constructed as an all-weather deep-water harbor by carving out a lagoon and protecting it from ocean swells with two rubble mound breakwaters extending from the shoreline. Because it is a man-made lagoon port rather than a naturally occurring sheltered bay, it requires continuous maintenance dredging to keep its approach channel and inner basin navigable for large commercial vessels.

Explanation

Cows possess a ruminant stomach, which is a specialized multi-chambered stomach divided into four distinct compartments: the rumen, reticulum, omasum, and abomasum. This complex digestive system enables them to digest tough, fibrous plant material and complex carbohydrates like cellulose through a process of microbial fermentation, followed by regurgitation and re-chewing of the food, known as cud-chewing.

Explanation

The services sector (also known as the tertiary sector) is the largest contributor to India's Gross Domestic Product. Following the economic liberalisation reforms of 1991, this sector experienced rapid and sustained expansion, particularly driven by high growth in information technology, telecommunications, banking, financial services, tourism, and trade. By the late 2000s, the services sector's share in the national income had grown to exceed 50 percent of the total GDP, signifying a structural shift in the Indian economy towards service-oriented economic activities.

Explanation

Bartaman Bharat is a historic Bengali book written by Swami Vivekananda. It was first published in 1899 in the inaugural issue of Udbodhan, the Bengali journal of the Ramakrishna Math and Ramakrishna Mission. The essay analyzes India's historical evolution from the perspective of class rule, focusing on the transition of dominance from priests, warriors, and merchants to the working class. Through this work, Vivekananda expressed his deep concern for the marginalized sections of Indian society and envisioned a modern, self-reliant India rooted in spiritual strength and social equality.

Explanation

The Indian rhinoceros (scientifically known as Rhinoceros unicornis, and historically referred to as Rhinoceros indica) is listed under Schedule I of the Wild Life (Protection) Act, 1972. Species classified under Schedule I receive the highest level of legal protection in India, and any hunting, poaching, or trading of these animals attracts the most severe penalties under the law.

Explanation

The Mathura School of Art flourished and reached its zenith during the Kushana period, particularly from the 1st century AD to the 3rd century AD, under the active patronage of Kushana emperors like Kanishka, Huvishka, and Vasudeva. This school of art is highly celebrated for its indigenous development, establishing a distinct style that made extensive use of characteristic spotted red sandstone quarried from nearby areas like Sikri. It is particularly famous for producing some of the earliest anthropomorphic representations of the Buddha, alongside a vast range of Brahmanical and Jain sculptures.

Explanation

The Coromandel Coast is the broad coastal plain in eastern Tamil Nadu state, extending along the southeastern coast of the Indian subcontinent. The name of the coast is derived from Cholamandalam, meaning the land of the Cholas, which was an ancient dynasty that ruled the southern region of India. This coastline stretches from the delta of the Krishna River in the north to Point Calimere in the south, bounded by the Bay of Bengal on the east and the Eastern Ghats on the west.

Explanation

The coding pattern represents the ratio of the number of vowels to the number of consonants in each word.

For the word TIGER, the vowels are I and E (2 vowels), and the consonants are T, G, and R (3 consonants), giving the ratio ⅔.

For the word BUFFALO, the vowels are U, A, and O (3 vowels), and the consonants are B, F, F, and L (4 consonants), giving the ratio ¾.

For the word CROCODILE, the vowels are O, O, I, and E (4 vowels), and the consonants are C, R, C, D, and L (5 consonants), giving the ratio ⅘.

Following the same logic for the word ELEPHANT, the vowels are E, E, and A (3 vowels), and the consonants are L, P, H, N, and T (5 consonants). This yields the ratio ⅗.

Explanation

Muga silk, which is also transliterated as Munga silk, is produced by the silkworm Antheraea assamensis. This lepidopteran species is endemic to the Brahmaputra valley of Assam and adjoining regions of Northeast India. The caterpillars of Antheraea assamensis feed primarily on the leaves of host plants such as Som (Machilus bombycina) and Soalu (Litsaea poliantha) to yield a highly durable, lustrous, and naturally golden-yellow colored silk that becomes increasingly glossy with every wash.

Explanation

Sri Gupta is historically recognized as the founder of the Gupta dynasty, reigning from approximately 240 CE to 280 CE. His role as the progenitor of the dynasty is confirmed by the genealogical accounts found in the Allahabad Pillar inscription, where he is styled as Maharaja. The Chinese Buddhist monk I-Tsing also recorded that a king named Che-li-ki-to, identified as Sri Gupta, built a temple near Mrigasikhavana for Chinese pilgrims.

Explanation

The Eleventh Five-Year Plan (2007-12) of India set an average annual GDP growth rate target of 9 percent. To achieve this, the plan envisioned accelerating the growth rate from 8.5 percent in its first year to 10 percent in the final year. This growth target was designed under the core theme of rapid and inclusive growth, aiming to substantially increase public investment in social sectors like education, health, and rural infrastructure.

Explanation

Uttar Pradesh shares its borders with the highest number of other states in India. It is bounded by eight states, namely Uttarakhand, Himachal Pradesh, Haryana, Rajasthan, Madhya Pradesh, Chhattisgarh, Jharkhand, and Bihar. Additionally, it shares a boundary with the Union Territory of Delhi.

Explanation

The Chamunda Devi temple is located inside the Mehrangarh Fort complex in Jodhpur, Rajasthan. On September 30, 2008, the first day of the Navratri festival, a severe stampede occurred at the temple. The tragedy was triggered when panic spread among thousands of gathered devotees following rumours of a bomb blast and a wall collapse. In the ensuing chaos, worshippers rushed down a steep, narrow path leading to the shrine, causing a crush that resulted in the deaths of 147 people and left many others injured.

Explanation

Under the Seventh Schedule of the Constitution of India, land revenue is a subject listed under Entry 45 of List II (State List). This gives the State Governments the exclusive legislative power and jurisdiction to levy, collect, and manage land revenue. The Central Government has no authority or jurisdiction over this tax, making it a state-specific source of revenue.

Explanation

Samudragupta, the great ruler of the Gupta dynasty, was given the title of Napoleon of India by the historian Vincent Arthur Smith in his book Early History of India. This moniker was bestowed upon him because of his remarkable military conquests and strategic genius, which allowed him to unify a vast portion of the Indian subcontinent without ever facing defeat. The extensive details of his triumphant campaigns across both Northern India and Southern India are preserved in the Allahabad Pillar inscription, also known as the Prayag Prashasti, which was composed by his court poet Harisena.

Explanation

Sasanka was the first independent ruler of the Gauda Kingdom in the Bengal region, reigning during the early seventh century CE. His capital was Karnasuvarna, which is located near modern-day Baharampur in the Murshidabad district of West Bengal. The Chinese pilgrim Xuanzang visited this city during his travels and left detailed accounts of its layout, Buddhist monasteries, and prosperous administration. Archaeological excavations at Rajbaridanga have successfully unearthed the ruins of this historic capital, including the famous Raktamrittika Mahavihara, confirming its historical location and significance.

Explanation

The Central Government set up a 13-member Committee of Secretaries to examine and process the recommendations of the Sixth Central Pay Commission. This high-powered committee was tasked with evaluating the recommendations and resolving various anomalies and representations from civil servants, paramilitary forces, and armed forces personnel. The committee was headed by the then Cabinet Secretary, K. M. Chandrasekhar.

Explanation

The Tropic of Cancer is a major latitude located at approximately 23.5 degrees north of the Equator. In India, it passes through eight states, which are Gujarat, Rajasthan, Madhya Pradesh, Chhattisgarh, Jharkhand, West Bengal, Tripura, and Mizoram. Madhya Pradesh is one of these states, and it has the longest stretch of the Tropic of Cancer passing through its territory, dividing the state almost into two equal halves while traversing through 14 of its districts, including Bhopal, Jabalpur, and Ujjain.

Explanation

Dr. Yaga Venugopal Reddy, commonly known as Y. V. Reddy, served as the 21st Governor of the Reserve Bank of India from September 6, 2003, to September 5, 2008. He is highly regarded for his role in implementing macroprudential regulations and policy measures that shielded India's financial system from the worst impacts of the global financial crisis of 2007–2008.

Explanation

The Planning Commission of India was established on 15 March 1950 through a cabinet resolution of the Government of India. Since it was created by an executive order and not through an Act of Parliament, it is classified as a non-statutory body.

Explanation

The Preferential Trade Agreement (PTA) between India and Chile was signed on March 8, 2006, and came into force in August 2007. This made Chile the first individual Latin American nation to establish a bilateral preferential trade agreement of this kind with India. The agreement aimed to enhance bilateral trade and economic cooperation by offering mutual tariff concessions on various products.

Explanation

Ikhtiyaruddin Muhammad Bakhtiyar Khalji, a military commander of the Ghurid Empire, invaded Bengal in 1202 A.D. Leading a swift and highly unexpected cavalry charge, he marched towards Nadia, the temporary capital of the Sena dynasty under King Lakshmana Sena. With only a small advance guard of eighteen horsemen, Khalji managed to surprise the royal court, forcing the aged ruler Lakshmana Sena to flee to eastern Bengal. This successful raid led to the capture of Nadia and marked the establishment of Islamic rule in Bengal, with Lakhnauti subsequently becoming the new seat of his administration.

Explanation

The Satish Dhawan Space Centre is India's primary orbital launch site, located on the barrier island of Sriharikota in Andhra Pradesh. Situated at a latitude of approximately 13.7° N, its close proximity to the equator is highly advantageous for launching satellites as it allows rockets to maximize the benefit of the Earth's rotational speed, reducing the fuel required to reach orbit. Additionally, its eastern coastal position ensures that launch trajectories pass safely over the vast expanse of the Bay of Bengal.

Explanation

Let a, b, c, d be positive real numbers such that a = 1, b = 5, c = 6, and d = 7. This choice of values satisfies the given condition a < b < c < d.

Evaluating the inequality in option (b): b - a = 5 - 1 = 4 d - c = 7 - 6 = 1

Since 4 > 1, the inequality b - a < d - c does not hold. Therefore, this statement is not necessarily true.

Explanation

Kamalesh Sharma, a seasoned Indian diplomat, was elected as the fifth Secretary-General of the Commonwealth of Nations in November 2007 at the Commonwealth Heads of Government Meeting in Kampala, Uganda. He assumed office on April 1, 2008, succeeding Don McKinnon of New Zealand. Prior to this prestigious appointment, Sharma served as the High Commissioner of India to the United Kingdom from 2004 to 2008 and as India's Permanent Representative to the United Nations. He completed his term as Commonwealth Secretary-General in March 2016.

Explanation

Amir Khusrow was a legendary Sufi musician, poet, and scholar associated with the royal courts of more than seven rulers of the Delhi Sultanate. He wrote prolifically in Persian and Hindavi, a precursor to modern Hindi and Urdu. Known for his extraordinary contribution to Indian classical music, Persian literature, and folk poetry, he was bestowed with the title Tuti-e-Hind, which translates to the Parrot of India or the Parrot of Hindustan, due to his lyrical genius and sweet-sounding compositions.

Explanation

The Swarajya Party, originally founded as the Congress-Khilafat Swarajya Party, was established in December 1922 following the Gaya session of the Indian National Congress. Chittaranjan Das, who presided over the Gaya session in December 1922, proposed council entry which was defeated by the No-Changers faction. Consequently, C.R. Das resigned from the Congress presidency and, along with Motilal Nehru as the secretary, announced the formation of the Swarajya Party in December 1922 to contest elections and enter the legislative councils to oppose British policies from within.

Explanation

Chhattisgarh was created as the 26th state of India on 1st November 2000 by partitioning sixteen Chhattisgarhi-speaking southeastern districts of Madhya Pradesh. This division was enacted through the Madhya Pradesh Reorganisation Act, 2000, passed by the Parliament of India, fulfilling a long-standing demand for a separate state based on cultural, linguistic, and developmental factors unique to the region.

Explanation

Federal Bank won the Best Core Banking Project Award 2007 (often referred to with a typographical error as Care Banking Project Award) at the Asian Banker IT Implementation Awards. The bank was selected as the sole recipient of this prestigious award for its successful migration and implementation of the Finacle core banking solution across all of its branches and offices.

Explanation

If a value A is P% more than another value B, then B is x% less than A, which is given by the formula:

x = (P)/(100 + P) × 100

Substituting the given value P = 10 into the formula:

x = (10)/(100 + 10) × 100

x = ¹⁰⁄₁₁₀ × 100

x = ¹⁰⁰⁄₁₁

x = 9¹⁄₁₁

Explanation

Chittaranjan Das, along with Motilal Nehru, founded the Congress-Khilafat Swarajya Party, commonly known as the Swarajya Party, in January 1923. Chittaranjan Das served as the president of this party, which advocated for entering the legislative councils to obstruct government functioning from within, rather than boycotting them.

Explanation

The Rural Electrification Corporation (REC) was granted Navratna status by the Department of Public Enterprises, Government of India, in May 2008. This prestigious status was awarded in recognition of the company's consistent financial performance, operational efficiency, and net worth, providing it with significantly greater financial and operational autonomy in its decision-making and investment activities.

Explanation

The Battles of Tarain were fought in 1191 and 1192 CE near Taraori, Haryana, between the Ghurid ruler Muhammad Ghori and the Chahamana king Prithviraj Chauhan. In the First Battle of Tarain (1191), Prithviraj Chauhan successfully defeated the invading forces of Muhammad Ghori. In the Second Battle of Tarain (1192), Ghori returned with a massive, reorganized army and defeated Prithviraj Chauhan, which marked a decisive turning point in Indian history by establishing the foundations of the Delhi Sultanate.

Explanation

The Consumer Price Index for Industrial Workers (CPI-IW) is compiled and released monthly by the Labour Bureau under the Ministry of Labour and Employment. It measures changes over time in the retail prices of a fixed basket of goods and services consumed by industrial workers. In India, the government utilizes the average of the CPI-IW to determine and periodically revise the Dearness Allowance (DA) of urban salaried workers, government employees, and pensioners to offset the impact of inflation on their purchasing power.

Explanation

The Usha Mehra Commission, appointed by the Delhi High Court, investigated the issue of sub-quotas within the Scheduled Caste category. Its report, submitted in 2009, recommended providing a sub-quota for certain communities, specifically the Valmikis, within the existing SC reservation in Delhi. Therefore, the statement that the Mehra Commission report did not recommend for sub-quotas is incorrect.

Explanation

The Dandi March, also known as the Salt Satyagraha, was launched by Mahatma Gandhi on 12th March, 1930, from Sabarmati Ashram near Ahmedabad. This 24-day march was a landmark nonviolent protest against the salt tax monopoly imposed by the British colonial government. Accompanied by 78 of his trusted volunteers, Gandhi walked 240 miles to the coastal village of Dandi in Gujarat, where he symbolically broke the salt law on 6th April, 1930, by producing salt from seawater, thereby initiating the nation-wide Civil Disobedience Movement.

Explanation

Shams-ud-din Iltutmish institutionalized and organized the Iqta system in India to provide administrative stability to the Delhi Sultanate. Under this system, the empire was divided into various territorial units called iqtas, which were assigned to military commanders and nobles in lieu of cash salaries. The assignees, known as iqtadars or muqtis, were responsible for administering their respective regions, collecting land revenue, maintaining local law and order, and providing a designated military force to the Sultan whenever required. This system served as a powerful tool for centralizing authority and consolidating the newly established sultanate.

Explanation

Khan Abdul Ghaffar Khan was affectionately called Frontier Gandhi because of his deep commitment to Mahatma Gandhi's philosophy of non-violence and satyagraha. As a prominent leader from the North-West Frontier Province, he mobilized the Pashtun people through his non-violent movement called the Khudai Khidmatgar, also known as the Red Shirts, to oppose British colonial rule. His close association and shared ideals with Mahatma Gandhi earned him this moniker.

Explanation

On May 7, 2008, India successfully test-fired the nuclear-capable intermediate-range ballistic missile, Agni-III, from the Integrated Test Range at Wheeler Island, located off the coast of Odisha. Wheeler Island serves as the primary launch site for testing India's long-range strategic missiles, offering a dedicated facility equipped with the advanced launch pads, radar systems, and tracking stations required to safely monitor trajectories over the Bay of Bengal.

Explanation

In the word NANDIGRAM, we analyze the positions and repetition of letters: The letter N appears at positions 1 and 3. The letter A appears at positions 2 and 8. All other letters (D at 4, I at 5, G at 6, R at 7, and M at 9) are unique and do not repeat.

In the option POPSANGOR: The letter P appears at positions 1 and 3. The letter O appears at positions 2 and 8. All other letters (S at 4, A at 5, N at 6, G at 7, and R at 9) are unique and do not repeat.

This match in letter repetition and structure makes POPSANGOR a valid substitution code for NANDIGRAM.

Explanation

The famous Adina Mosque in Pandua, Bengal, was built by Sikandar Shah, the second sultan of the Ilyas Shahi dynasty, with construction completed around 1373 AD. Designed as a grand congregational mosque, its immense size and architectural grandeur served to project the sultan's imperial authority and celebrate his successful defense of Bengal against the Delhi Sultanate. The mosque is highly regarded for its unique fusion of Islamic architecture with local Hindu-Buddhist motifs, featuring a massive central courtyard, a monumental barrel-vaulted hall, and intricate terracotta ornamentation.

Explanation

The National Development Council was established in August 1952 as an apex body to facilitate cooperation between the Union Government and the State Governments in the planning process. Its core responsibility was to consider, discuss, and grant final approval to the Five-Year Plans formulated by the Planning Commission before they were submitted to the Parliament of India for formal adoption. This mechanism ensured that the states had a direct voice in shaping national developmental priorities and resource allocation.

Explanation

In 2008, the government of Thailand proposed the formation of an OPEC-like cartel tentatively named the Organization of Rice Exporting Countries. This alliance was designed to give member nations more control over the price of rice in the international market. The group comprised five Southeast Asian nations in the Mekong sub-region: Thailand, Vietnam, Cambodia, Myanmar, and Laos. Since Thailand initiated the proposal, the other four countries involved in the proposed cartel were Vietnam, Cambodia, Myanmar, and Laos.

Explanation

Nabagopal Mitra founded the Hindu Mela in Calcutta in 1867, along with Rajnarayan Basu and Jyotirindranath Tagore. The primary objective of the Mela was to foster a sense of national pride, promote patriotic feelings, and encourage self-reliance among Indians through the exhibition of indigenous arts, crafts, and physical culture. Nabagopal Mitra played such a pivotal role in organizing this annual nationalist festival and promoting indigenous institutions that he became widely known as National Mitra.

Explanation

By analyzing the letter-to-digit correspondences in the given words, we can decode each letter:

In COCK (5153), the letter C is repeated, as is the digit 5, meaning C = 5. The remaining letters O and K correspond to 1 and 3.

In FOOD (4116), the letter O is repeated, as is the digit 1, confirming O = 1. Consequently, K = 3 in COCK. The remaining letters F and D correspond to 4 and 6.

In DOLL (6199), the letter L is repeated, as is the digit 9, meaning L = 9. Since O = 1, D must be 6, which matches with FOOD (leaving F = 4).

In CROW (5812), we already know C = 5 and O = 1. This leaves R and W corresponding to 8 and 2.

We can list the assigned digits: C = 5, O = 1, K = 3, F = 4, D = 6, L = 9, R = 8, W = 2. The unassigned digits are 0 and 7.

To find the code for RICE, we substitute the known values for R and C: R I C E is represented as 8 _ 5 _

The second and fourth digits must represent the letters I and E. Since I and E do not appear in any of the previous words, they must be represented by the unassigned digits 0 and 7. Thus, RICE is coded as 8057.

Explanation

Maladhar Basu was a prominent 15th-century Bengali poet from Kulingram in the Purba Bardhaman district of West Bengal. He is best known for composing Sri Krishna Vijaya between 1473 and 1480 CE, which is considered the earliest surviving narrative poem in Middle Bengali. The work is a translation and adaptation of the 10th and 11th cantos of the Sanskrit Bhagavata Purana, depicting the life and exploits of Lord Krishna. Recognizing his outstanding literary and scholarly contribution, Sultan Ruknuddin Barbak Shah of Bengal conferred upon him the title of Gunaraj Khan.

Explanation

The given product P is written as:

P = (20 - 1)(20 - 2)(20 - 3)… (20 - 40)

This sequence contains 40 terms, where the r-th term is of the form (20 - r) for integers r from 1 to 40.

The 20th term in this product corresponds to r = 20, which is:

20 - 20 = 0

Since one of the multiplying factors in the product is 0, the value of the entire product P becomes 0.

The value 0 lies in the range of being greater than or equal to -10,000 and less than 10,000.

Explanation

The 108th Constitution (Amendment) Bill, popularly known as the Women's Reservation Bill, was introduced in the Rajya Sabha on May 6, 2008, during the tenure of the UPA government. The bill sought to reserve one-third (33 percent) of all seats for women in the Lok Sabha and in all state legislative assemblies to ensure gender parity and strengthen women's representation in legislative bodies.

Explanation

The Secretariat of the South Asian Association for Regional Cooperation (SAARC) is located in Kathmandu, Nepal. It was established on 16 January 1987 and inaugurated by King Birendra Bir Bikram Shah of Nepal. The Secretariat is responsible for coordinating and monitoring the implementation of SAARC activities, servicing the meetings of the association, and serving as a channel of communication between the association and its member states.

Explanation

The Indian Association was founded on July 26, 1876, in Calcutta by Surendranath Banerjee along with Ananda Mohan Bose. It was the first declared nationalist organization established in British India, representing the aspirations of the educated middle class and working to unify the country on a common political platform. The association played a pivotal role in creating strong public opinion on political issues, organizing campaigns against the Civil Services age limit reduction, and promoting national unity, before eventually merging with the Indian National Congress in 1886.

Explanation

The function γ(x) represents the rank of the observation x when the given set of observations is arranged in descending order.

Arranging the given set of observations in descending order: 39, 36, 31, 25, 20, 15, 13, 6

Assigning sequential ranks to each of these values from 1 to 8: The value 39 has rank 1 The value 36 has rank 2, which gives γ(36) = 2 The value 31 has rank 3 The value 25 has rank 4, which gives γ(25) = 4 The value 20 has rank 5, which gives γ(20) = 5 The value 15 has rank 6 The value 13 has rank 7, which gives γ(13) = 7 The value 6 has rank 8

This confirms that γ(25) equals 4.

Explanation

The USA and Russia signed a civil nuclear cooperation agreement (123 Agreement) on May 6, 2008. While this agreement was not ultimately ratified by the US Congress due to subsequent geopolitical events, it was indeed signed in May 2008, fitting the question's specifics.

Explanation

Gulbadan Begum, the daughter of Mughal Emperor Babur and the sister of Emperor Humayun, authored the Humayun-nama. She wrote this historical account at the request of her nephew, Emperor Akbar, who wanted her to record her recollections of her brother's life to assist Abul Fazl in compiling the Akbarnama. Written in Persian, the text provides a valuable and unique glimpse into the domestic life, struggles, and culture of the early Mughal royal household and harem.

Explanation

Let the capacity of the jar when it is full be C. Since the number of insects doubles every day, moving backward in time means the number of insects is halved on each preceding day.

If the jar is full to the brim on 28.2.2007, the quantity of insects is C.

On the previous day, 27.2.2007, the quantity of insects is half of the capacity: C × ½ = C/2

On the day before that, 26.2.2007, the quantity is halved again: C/2 × ½ = C/4

Since C/4 represents a quarter of the total capacity, the jar was quarter-full on 26.2.2007.

Explanation

The Indian Association was founded on July 26, 1876, by Surendranath Banerjee and Ananda Mohan Bose in Calcutta. It was the first declared nationalist organization established in British India, created to unify Indians under a common political program and foster their political, intellectual, and material advancement. The association played a pioneering role in the early Indian national movement and later merged with the Indian National Congress in 1886.

Explanation

The Information Technology sector in India is highly export-dependent, generating a substantial portion of its revenues in foreign currencies, especially the US dollar. Since the operating expenses of these firms, such as employee salaries and administrative costs, are primarily denominated in Indian rupees, any appreciation of the rupee against the dollar reduces the rupee realization of their dollar-denominated earnings. This mismatch directly shrinks profit margins and adversely impacts the financial performance of export-oriented IT service providers.

Explanation

The French Government bestowed France's highest civilian distinction, the Officier de la Legion d'Honneur (Officer of the Legion of Honour), upon the legendary Indian filmmaker Yash Chopra. While the decree announcing the award was issued by French President Nicolas Sarkozy in January 2008, the insignia was formally presented to him by the French Ambassador to India, Jerome Bonnafont, at a ceremony in New Delhi in July 2008. The honor recognized his extensive contributions to Indian cinema as a filmmaker and producer, his mentorship of young directors, and his role in promoting cultural collaboration and audiovisual partnerships between India and France.

Explanation

Sher Shah Suri introduced the land revenue administration reforms of Patta and Qabuliyat to establish a direct relationship between the state and the peasantry. Under this system, the Patta was a title deed given to the cultivator that specified the exact area of land held, the crops grown, and the revenue demand to be paid to the government. In return, the peasant signed a Qabuliyat, which was a deed of agreement accepting the state's revenue demands and committing to make the specified payments, thereby preventing exploitation by intermediaries.

Explanation

For any integer n ≥ 5, the factorial expression n! contains 5 as a factor. Therefore, n! is fully divisible by 5, meaning n! ≡ 0 5 for all n ≥ 5.

To find the remainder of the sum when divided by 5, we only need to evaluate the terms up to 4!:

1! + 2! + 3! + … + 100! ≡ 1! + 2! + 3! + 4! 5

Calculating the individual factorials: 1! = 1 2! = 2 3! = 6 ≡ 1 5 4! = 24 ≡ 4 5

Adding these values together: 1 + 2 + 1 + 4 = 8

Dividing 8 by 5 yields a remainder of 3, as: 8 = 1 × 5 + 3

Explanation

The Quit India Movement, also known as the August Movement, was launched by Mahatma Gandhi on 8 August 1942 during the Bombay session of the All India Congress Committee. Mahatma Gandhi delivered his famous Do or Die speech at the Gowalia Tank Maidan in Bombay on this day, calling for an orderly British withdrawal from India.

Explanation

In mid-2008, the Reserve Bank of India modified the repo rate multiple times to combat rising inflationary pressures. Specifically, the repo rate was hiked by 50 basis points in June 2008 to 8.50 percent, and by another 50 basis points in July 2008 to reach 9.00 percent. Therefore, the statement claiming that the Reserve Bank of India did not change the repo rate up to September 2008 is incorrect.

Explanation

Aurangzeb was known as Zinda Pir or the living saint due to his austere and simple lifestyle. Unlike other Mughal emperors, he strictly adhered to the principles of Islamic law in his personal life, avoided royal luxuries, and earned his livelihood by sewing caps and copying the Quran rather than using state funds for his personal expenses.

Explanation

Let the total number of runs scored by the Indian Cricket Team be x.

Since the company pays x amount of money per run, the total money spent by the company on this deal is given by the formula:

Total Amount = x × x = x²

This means the total amount spent must be a perfect square of an integer.

According to the mathematical properties of numbers, the unit digit of any perfect square can only be 0, 1, 4, 5, 6, or 9. A perfect square can never end with the digits 2, 3, 7, or 8 in the units place.

The number 1,21,108 ends with the digit 8 in its units place, which mathematically prevents it from being a perfect square. Consequently, this cannot be the total amount spent by the company.

Explanation

The President of India has declared a National Emergency under Article 352 of the Indian Constitution on three occasions.

The first National Emergency was proclaimed in October 1962 due to Chinese aggression in the North-East Frontier Agency and remained in force until January 1968.

The second National Emergency was declared in December 1971 during the Indo-Pakistan War.

The third National Emergency was proclaimed in June 1975 on the grounds of internal disturbance and was revoked in March 1977.

Explanation

The first assumption states that all cricketers are singers. This is a universal affirmative proposition of the form All A are B, which can be logically converted into a particular affirmative proposition of the form Some B are A. Therefore, the statement that all cricketers are singers immediately and unconditionally implies that some singers are cricketers, making conclusion I logically valid.

The second assumption states that all footballers are singers. Since both the set of cricketers and the set of footballers are subsets of singers, there is no information or logical link provided to establish any direct relationship or intersection between cricketers and footballers. Consequently, conclusion II does not logically follow.

Explanation

The Azad Hind Fouz, also known as the Indian National Army, was formally established on 1st September, 1942. It was originally created in Southeast Asia during World War II by Captain Mohan Singh with the support of the Imperial Japanese Army. The force was predominantly composed of Indian prisoners of war captured by the Japanese during the Malayan campaign and at Singapore, who chose to fight against British colonial rule to liberate India. Although this first incarnation of the army was dissolved later in December 1942 due to disagreements with the Japanese command, it laid the foundation for the subsequent revival of the movement under the leadership of Netaji Subhas Chandra Bose in 1943.

Explanation

Ram Baran Yadav was elected as the first President of Nepal on 21 July 2008 following the abolition of the 240-year-old monarchy and the official declaration of Nepal as a federal democratic republic. He secured the majority of votes in the Constituent Assembly and took office on 23 July 2008, serving as the head of state during the transitional period until October 2015 when the new constitution was adopted.

Explanation

Alauddin Khalji introduced the first documented rationing system in India as part of his comprehensive market control reforms. To maintain a large standing army at low costs, he fixed the prices of all essential commodities, including food grains, sugar, and clothing. To prevent shortages and ensure food security during emergencies, droughts, or times of scarcity, he established state granaries across the empire. Grain collected as land revenue was stored in these state-run storehouses and distributed to the citizens of Delhi through a structured rationing system, where each household was entitled to a specific quantity of food grain per day.

Explanation

Annie Besant was a key leader of the Home Rule Movement, establishing the All India Home Rule League in September 1916. She actively campaigned for self-rule for India within the British Empire.

Explanation

As per both the 2001 and 2011 censuses, Uttar Pradesh holds the largest population in India. Maharashtra consistently ranks as the state with the second largest population during these periods.