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A pendulum makes perfectly elastic colli...

A pendulum makes perfectly elastic collision with block of m lying on a frictionless surface attached to a spring of force constant k. Pendulum is slightly displaced and released. Time period of oscillation of the system is

A

`2pi [sqrt((l)/(g)) + sqrt((m)/(k))]`

B

`pi [sqrt((l)/(g)) + sqrt((m)/(k))]`

C

`2pi sqrt((l)/(g))`

D

`2pi sqrt((m)/(k))`

Text Solution

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The correct Answer is:
B
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