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A disc of radius R is pivoted at its rim...

A disc of radius `R` is pivoted at its rim. The period for small oscillations about an axis perpendicular to the plane of disc is

A

`2pisqrt(R/g)`

B

`2pisqrt((2R)/(3g))`

C

`2pisqrt((2R)/(g))`

D

`2pisqrt((3R)/(2g))`

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The correct Answer is:
D
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