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(A) : All oscillatory motions are necess...

(A) : All oscillatory motions are necessarily periodic motion in conservative fields but all periodic motion are not oscillatory.
(R) : Simple pendulum is an example of oscillatory motion.

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

Verified by Experts

The correct Answer is:
B
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Knowledge Check

  • All oscillatory motions are necessarily periodic motion in conservative fields but all perodic motion are not oscillatory. Simple pendulum is an example of oscillatory motion.

    A
    Both 'A' and 'R' are ture 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 and 'R' is false
    D
    A' is false and 'R' is true

  • In a simple harmonic motion

    A
    the potential energy is always equal to the kinetic energy
    B
    the potential energy is never equal to the kinetic energy
    C
    the average potential energy in any time interval is equal to the average kinetic in that time interval
    D
    the average potential energy in the time period is equal to the average kinetic energy in this period

  • The average acceleration in one time period in a simple harmonic motion is

    A
    `A omega^(2)`
    B
    `A omega^(2)//2`
    C
    `A omega^(2)//sqrt(2)`
    D
    zero

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