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Two identical simple pendulums A and B a...

Two identical simple pendulums A and B are fixed at same point. They are displaced by very small angles `alpha` and `beta ( beta gt alpha)` and released from rest. Find the time after which B reaches its initial position for the first time. Collisions are elastic and length of strings is `l`.

A

`pisqrt(l/g)`

B

`2pisqrt(l/g)`

C

`(pibeta)/alphasqrt(l/g)`

D

`(2pibeta)/alphasqrt(l/g)`

Text Solution

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The correct Answer is:
B
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