Sets
Physics Set 4
30 questions 1. At constant pressure, the volume V and absolute temperature T of a given quantity of gas are related as:
2. The image formed by a concave lens, irrespective of the position of the object, is always:
3. Consider the following statements:
(I) The magnitude of displacement can be less than the total distance travelled.
(II) The magnitude of displacement can be greater than the total distance travelled.
(III) Displacement can be zero even when the distance travelled is not zero.
Which of the above is/are correct?
4. A waxing Moon is easiest to spot at:
5. Taking the speed of sound as 340 m s⁻¹, the minimum distance of a reflecting surface for hearing a distinct echo is:
6. The process by which decomposers return nitrogen compounds such as ammonia to the soil is called:
7. Which of the following is a pair of isobars?
8. During the day, the wind blowing from the sea to the land is called:
9. The relative density of a substance is the ratio of its density to the density of water at:
10. The force on a current-carrying conductor in a magnetic field is the largest when the current is:
11. Consider the following statements:
(I) The direction of force on a current-carrying conductor reverses when the direction of current is reversed.
(II) The direction of force reverses when the direction of the magnetic field is reversed.
(III) The direction of force is independent of the direction of current and field.
Which of the above is/are correct?
12. The asteroid belt lies between the orbits of:
13. A satellite in a circular orbit around the Earth has a kinetic energy of 4 × 10⁹ J. Its total energy is:
14. A coil of many circular turns of insulated copper wire wrapped closely in the shape of a cylinder is called a:
15. The second is defined using the unperturbed ground-state hyperfine transition frequency of the atom of:
16. The smallest and lightest positive ion obtained in the discharge tube came from the gas:
17. Mechanical energy is the energy an object possesses due to its:
18. Consider the following statements:
(I) A convex lens converges a parallel beam of light.
(II) A concave lens diverges a parallel beam of light.
(III) A concave mirror diverges a parallel beam of light.
Which of the above is/are correct?
19. 1 joule is equal to:
20. One hertz (1 Hz) is equal to: