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Class 11 Physics (Part Ii) Chapter 16 Oscillations Quiz 5 (25 MCQs)

Quiz Instructions

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1. True or False:The time for a complete back-and-forth swing of a pendulum is its frequency.
2. A block-spring system is vibrating in simple harmonic motion on a frictionless horizontal surface. The block has a mass of 0.050 kg and the force constant of the spring is 800 N m$^{-1}$. What is the frequency of the vibration?
3. Pendulum "A" is on Jupiter Pendulum "B" is on the Moon. The Moon has less gravity than Jupiter the pendulums have the same mass and length. Which Pendulum is moving faster?
4. A body moves with simple harmonic motion of amplitude 0.90m and period 8.9 s. What is the speed of the body when its displacement is 0.70 m.
5. Which of the following is an example of free oscillation?
6. What is damping in oscillations?
7. What factors affect the period of a pendulum?
8. The displacement of a particle moving in simple harmonic motion is given by x=5 cos 2t where x is in centimetres and the time t in seconds. If the period of the motion is T, the acceleration of the particle at t= $\frac{T}{6}$
9. A wave traveling at 340. m/s with a wavelength of 7.65 m will have a frequency of .....
10. The path length of a body performing SHM is .....
11. The period formula of a pendulum depends on:
12. A spring of spring constant 30.0 N/m is attached to a mass of 1.9 kg; find the period and frequency of vibration for this system.
13. A particle executes simple harmonic oscillation. Its amplitude is a. The period of oscillation is T. The minimum time taken by the particle to travel half of the amplitude from the equilibrium position is
14. Orbtial Period of a planet is
15. Simple harmonic motion occurs when:
16. The time period of an oscillation is the:
17. For a SHM, what is the shape of the graph of velocity (v) against displacement (x)?
18. How does the length of a pendulum affect its oscillation period?
19. Overdamping occurs when:
20. 1 db is equal to
21. If a vibrating object takes 0.1 s to complete one oscillation, the number of complete oscillations that is made by the object during 100 s equals ..... oscillations.
22. A boy notices that 45 complete waves travel past him in ninety seconds. What is the frequency of these water waves?
23. A mass M is suspended from a spring of negligible mass. The spring is pulled a little and then released so that the mass executes SHM of time period T. If the mass is increased by m, the period becomes 5T/3. Then the ratio m/M is .....
24. If a vibrating object makes 90 oscillations in one minute, then its frequency equals .....
25. The period of vertical oscillation of a mass-spring system is T when the spring carries a mass of 1.00 kg. What mass should be added to the 1.00 kg if the period is to be increased to 1.50 T?
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