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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 `I` about an axis passing through its centre and perpendicular to its plane. It is melted and recast into a solid sphere. The `M.I` of the sphere about its diameter as axis of rotation is

A

I

B

`(I)/(5)`

C

`(I)/(10)`

D

`(2I)/(8)`

Text Solution

Verified by Experts

The correct Answer is:
B
`I_(d)=(MR^(2))/(2)`
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