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A string of length L is stretched along ...

A string of length L is stretched along the x-axis and is rigidly clamped at its two ends. It undergoes transverse vibration. If n an integer, which of the following relations may represent the shape of the string at any time :-

A

`y=Asin((npix)/L)cosomegat`

B

`y=Asin((npix)/L)sin omegat`

C

`y=Acos((npix)/L)cos omegat`

D

`y=Acos((npix)/L) sin omegat`

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The correct Answer is:
A, B
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