Previous Year UPSC Questions

Explanation

The money supply in an economy refers to the total stock of money available at a given point in time. The Reserve Bank of India (RBI) publishes several measures of the money supply, namely M1, M2, M3, and M4. M3 (Broad Money) is defined as M1 plus net Time Deposits with the banking system. Currency with the public Demand deposits with banks Time deposits with banks

Explanation

A debt trap occurs when a country borrows additional funds to pay interest on existing loans, leading to an escalating debt burden and difficulty repaying the principal. This cycle results in persistent borrowing, increased fiscal deficits, and potential economic instability. Central banks and governments use interest rate policies to manage inflation and economic growth. However, if the money supply grows slower than the required funds for servicing debt, the country must rely on additional borrowing, worsening the debt situation. When a country must borrow to pay interest on its outstanding loans, it is caught in a vicious cycle of debt. This situation arises when the existing revenue streams are insufficient to cover the debt servicing costs, forcing the government to take on additional debt.

Option (b) is incorrect: While IMF conditionalities aim to stabilize the economy, they do not define a debt trap.

Option (c) is incorrect: Being refused loans or aid may indicate financial distress but does not define a debt trap.

Option (d) is incorrect: High interest rates can exacerbate a country’s debt burden but do not, by themselves, define a debt trap.

Explanation

Pre-Congress associations like Madras Association, Indian Association were, active before the formation of the Indian National Congress in 1885, laid the groundwork for India’s political awakening. These associations united educated Indians to demand reforms and fostered early nationalist sentiment.

Option (d) is correct: The Poona Sarvajanik Sabha, established in 1867 in Pune, aimed to promote education, social welfare, and political reforms in India. In 1875, it submitted a petition to the House of Commons, demanding direct representation for India in the British Parliament. The petition argued that India, as part of the British Empire, deserved a voice in the legislative process to address Indian concerns and prevent policies harmful to its progress.

Explanation

The Indian Councils Act of 1861 strengthened the Viceroy’s authority over his Executive Council by replacing corporate functioning with a portfolio system. In the portfolio system individual members of the Viceroy’s Executive Council were assigned specific departments to manage, replacing the previous collective decision-making process. This shift strengthened the Viceroy’s authority, enabling more efficient governance. Before the Act, the Council functioned collectively but after it, the Viceroy had greater centralized control with Council members responsible for key areas like finance, law, and home affairs. This reorganization reinforced British control over colonial governance.

Explanation

Density is a measure of how much mass is packed into a given volume. Buoyancy is the tendency of an object to float in a fluid. An object floats if its density is less than the fluid’s density and sinks if its density is greater. If the densities are equal, the object remains neutrally buoyant, neither sinking nor floating. Assertion (A) is true: Iron is denser than water, so it sinks in water. However, mercury is denser than iron, so an iron ball will float on mercury. Reason (R) is false: Specific gravity is the ratio of the density of a substance to the density of a reference substance (usually water). Mercury is denser than iron, so its specific gravity is higher.

Explanation

The parliament of India, while exercising the power under article 221, has made provision that the salary and Allowances of a HC judge be charged upon the Consolidated fund of State while Pension upon the Consolidated Fund of India. Consolidated Fund of India (Article 266) covers central government expenses, including Supreme Court judges’ salaries. Consolidated Fund of the State (Article 266), includes all state revenues and loans and covers state expenses. The Contingency Fund of India [ Article 267(1)] of the Indian Constitution is a reserve fund for meeting unforeseen and urgent expenditures, placed at the disposal of the President of India. The Contingency Fund of the State [Article 267(2)] of the Indian Constitution, is a reserve for unforeseen and urgent expenditures, available to the Governor of the state.

Explanation

As per the Economic Survey 2001-02, the fiscal deficit and interest payments remain key challenges in public finance management.

Statement 1 is correct: The Union Budget reports external debt at historical exchange rates, meaning the exchange rates prevailing at the time the debt was incurred. This method reflects the original cost of the debt in domestic currency terms.

Statement 2 is correct: Persistent high government borrowing can lead to an increase in real interest rates. This occurs because substantial borrowing may crowd out private investment, leading to higher demand for available funds and elevated interest rates.

Statement 3 is correct: An increasing Fiscal Deficit to GDP ratio indicates that the government is borrowing more relative to the size of the economy. This can crowd out private investment by reducing the funds available for private entities and potentially increasing interest rates, making borrowing more expensive for businesses.

Statement 4 is correct: Non-plan revenue expenditure includes obligatory expenses such as interest payments, pensions, and statutory transfers to states. Among these, interest payments have historically been the largest component.

Explanation

The rate at which an object cools depends on its surface area-to-volume ratio and temperature difference with the surroundings. A higher surface area-to-volume ratio allows more heat to be dissipated into the surroundings, leading to faster cooling. The sphere has the largest surface area compared to the cube and circular plate. The larger the surface area, the more heat can be radiated or transferred to the surroundings, which leads to a faster cooling rate. The sphere cools faster than the circular plate and cube for the same radius. The more heat the sphere can radiate, the quicker it will reach room temperature compared to objects with smaller surface areas. Note: Here, we can ignore the impact of volume as the sphere, disc or cube all are hollow with negligible thickness.

Explanation

Statement 1 is incorrect: According to Rayleigh scattering, light with shorter wavelengths (e.g., blue light) is scattered more than light with longer wavelengths (e.g., red light).

Statement 2 is incorrect: The refractive index of water is approximately 1.33, so the speed of light in water is about 1/1.33 0.75° the speed in a vacuum.

Statement 3 is correct: Radio waves are a type of electromagnetic radiation generated when electrical charges oscillate in an antenna. These oscillations create alternating electric and magnetic fields that propagate as waves. This principle is the basis of wireless communication technologies like radio, TV, and mobile networks.

Statement 4 is correct: The Doppler effect is used in radar guns to measure the speed of moving vehicles by analyzing the frequency shift of reflected radio waves.

Explanation

A mirage is primarily caused by terrestrial heating and the refraction of light. Mirage causes deceptive appearance of a distant object or objects caused by light ray bending (refraction) in different density layers of air. Terrestrial Heating: The ground is intensely heated by the sun (such as a hot road or desert). This heats the air near the surface, making it less dense than the cooler air above. The temperature gradient creates a gradient in the refractive index of the air. Refraction of Light: Light from the sky or distant objects passes through the layers of air with varying temperatures and densities. The light bends (refracts) as it moves from cooler, denser air to hotter, less dense air. This bending creates the illusion of water or a mirrored surface on the ground.