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The displacement x (in metre ) of a part...

The displacement x (in metre ) of a particle in, simple harmonic motion is related to time t ( in second ) as
` x= 0.01 cos (pi t + pi /4)`
the frequency of the motion will be

A

0.5Hz

B

1.0 Hz

C

`pi/2Hz`

D

`piHz`

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The correct Answer is:
A
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