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A circular disc of radius R and thicknes...

 A circular disc of radius R and thickness `(R)/(6)` has moment of inertia about an axis passing through its centre and perpendicular to its plane. It is melted and recasted into a solid sphere. The moment of inertia of the sphere about its diameter as axis of rotation is

A

`I/5`

B

`I/6`

C

`I/32`

D

`I/64`

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The correct Answer is:
A
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