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(A) : Dampled oscillation indicates loss...

(A) : Dampled oscillation indicates loss of energy.
(R) : The loss in damped oscillation may be due to friction, air resistance etc.

A

Both A and (R) are true and (R) is the correct explanation of (A)

B

Both (A) and (R) are true and (R) is not the correct explanation of (A)

C

(A) is true but (R) is false

D

Both (A) and (R) are false

Text Solution

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The correct Answer is:
A
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AAKASH SERIES-OSCILLATIONS-EXERCISE-1B
  1. (A) : All oscillatory motions are necessarily periodic motion in conse...

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  2. (A) : If a man with a wrist watch on his hand falls from the top of a ...

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  3. (A) : Dampled oscillation indicates loss of energy. (R) : The loss i...

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  4. (A) : If a pendulum clock is taken to mountain top, it will lose time....

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  5. (A) : The soldiers marching on a suspended bridge are advised to break...

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  6. (A) : For an oscillating simple pendulum, the tension in the string is...

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  7. (A) : The graph of potential energy and kinetic energy of a particle i...

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  8. (A) : Simple harmonic motion is not a uniformly accelerated motion. ...

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  9. (A) : In SHM, acceleration is always directed towards the mean positio...

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  10. (A) : The graph between velocity and displacement for a simple harmoni...

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  11. (A) : The percentage change in time period is 1.5%, if the length of s...

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  12. (A) : During the oscillation of simple pendulum the direction of its a...

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  13. (A) The length - time period graph for simple pendulum is parabola. ...

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  14. (A) : In simple harmonic motion, the motion is to and fro and periodic...

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  15. (A) : Simple pendulum is said to be executing linear SHM if its angula...

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  16. (A) : SHM is an example of varying velocity and varying acceleration. ...

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  17. (A) : The bob of a pendulum is immersed in non viscous liquid (denser ...

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  18. (A) : Resonance is a special case of forced vibration in which the nat...

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  19. (A) : The amplitude of an oscillating pendulum decreases gradually wit...

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  20. (A) : The periodic time of a hard spring is less as compared to that o...

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