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Questions  

A ball of radius 'a' is made to oscillate in a bowl of radius 'b' then time period of vibration of the ball is

a
2πag
b
2πb−ag
c
2πbg
d
2πb+ag

detailed solution

Correct option is B

apply time period equationT = 2πlgl = b-aT = 2πb−ag

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