Sets
Physics Set 24
30 questions 1. Consider the following situations:
(I) The force acting on an object is zero.
(II) The object undergoes no displacement.
(III) The force acts perpendicular to the displacement.
In which of the above is the work done by the force zero?
2. 30 density oscillations occur at a fixed point in 6 s. The time period of the sound wave is:
3. For the oscillator in the previous question, the kinetic energy at a displacement of 0.06 m from the mean position is:
4. Consider the following pairs:
(I) ²³⁵₉₂U – Fuel in a nuclear reactor
(II) ¹³¹₅₃I – Treatment of goitre and thyroid cancer
(III) ¹⁴₆C – Radiation treatment for cancer
Which of the pairs given above is/are correctly matched?
5. In uniform circular motion, the velocity at any point is directed along the:
6. Galileo measured the time of each swing of a church lamp using his:
7. Taking g = 9.8 m s⁻² at the surface and the radius of the Earth as 6400 km, the approximate value of g at a height of 128 km above the surface is:
8. The tendency of an object to resist a change in its state of rest or uniform motion was named by Newton as:
9. The process of surface water seeping through soil and rocks is called:
10. In a simple pendulum, the restoring torque about the support is provided by the:
11. A scale has a broken zero end. An object's ends coincide with the 2.0 cm and 11.6 cm marks. The length of the object is:
12. The dimensional formula of mass density is:
13. During a change of state, the temperature of a substance:
14. The Moon takes about how long to cycle through all its phases?
15. Varahamihira gave methods for predicting seasonal rainfall in his work:
16. The metal used almost exclusively for the filaments of electric bulbs is:
17. The correct chronological order of the atomic models is:
18. The right-hand thumb rule is also called:
19. The main limitation of Rutherford's model was its inability to explain the:
20. Which of the following has the highest specific heat capacity?