Name the first major voluntary association representing primarily Indian land-lord interests that was set up in Calcutta in 1851?
UPSC NDA-1
22. Who among the following social reformer started a society for the enco
Who among the following social reformer started a society for the encouragement of widow remarriage in 1866 in Maharashtra ?
23. What is the name of the award given to meritorious men in the Mughal C
What is the name of the award given to meritorious men in the Mughal Court in the form of a robe of honour that was once worn by the Emperor ?
24. Who gifted the Badshah Nama to King George in 1799 ?
Who gifted the Badshah Nama to King George in 1799 ?
25. Which one of the following statements about Renaissance Humanist cultu
Which one of the following statements about Renaissance Humanist culture is NOT true ?
26. Who among the following built a model steam engine in 1698 called “Min
Who among the following built a model steam engine in 1698 called “Miner’s Friend” to drain mines ?
27. Which one of the following statements about the Olympe de Gouges (1748
Which one of the following statements about the Olympe de Gouges (1748-1793) is correct ?
28. Who among the following first used the term ‘Industrial Revolution’ in
Who among the following first used the term ‘Industrial Revolution’ in English to describe the changes that occurred in British industrial development between 1760 and 1820 ?
29. Thermal capacity of a body depends on the
Thermal capacity of a body depends on the
Looking at the options:
A) mass of the body only: While incomplete as it doesn’t mention the material (specific heat capacity), mass is a fundamental determinant.
B) mass and shape of the body only: Shape does not affect thermal capacity. Incorrect.
C) density of the body: Density is mass per unit volume. Thermal capacity depends on total mass, not density directly unless volume is fixed and material is implied. Incorrect.
D) mass, shape and temperature of the body: Shape is incorrect. While specific heat capacity can vary with temperature, “temperature of the body” in this context is ambiguous and shape is explicitly wrong. Incorrect.
Given the options, A is the best fit as mass is a primary factor, even though the material’s specific heat capacity is also crucial. The question asks what it “depends on” among the options provided. Mass is the only consistently correct factor listed without incorrect additions in options B, C, and D. This suggests the question focuses on the extensive nature of thermal capacity.
30. Which of the following statements about electromagnetic waves, sound w
Which of the following statements about electromagnetic waves, sound waves and water waves is/are correct ?
- 1. They exhibit reflection
- 2. They carry energy
- 3. They exert pressure
- 4. They can travel in vacuum
Select the correct answer using the code given below :
1. They exhibit reflection: Yes, all three types of waves can be reflected when they encounter a boundary. (e.g., light reflection from a mirror, sound reflection creating an echo, water waves reflecting off a wall). Correct.
2. They carry energy: Yes, all waves are disturbances that transfer energy from one place to another. Correct.
3. They exert pressure: Electromagnetic waves exert radiation pressure. Sound waves are essentially pressure variations in a medium. Water waves exert pressure on objects they encounter. Correct.
4. They can travel in vacuum: Electromagnetic waves (like light, radio waves) can travel through a vacuum. However, sound waves require a material medium (like air, water, or solids) to propagate and cannot travel in a vacuum. Water waves also require water as a medium. Incorrect.
Therefore, statements 1, 2, and 3 are correct for all three types of waves, while statement 4 is only correct for electromagnetic waves.