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A solid sphere of mass M, radius R and h...

A solid sphere of mass `M`, radius `R` and having moment of inertia about as axis passing through the centre of mass as `I`, is recast into a disc of thickness `t`, whose moment of inertia about an axis passing through its edge and perpendicular to its plance remains `I`. Then, radius of the disc will be.

A

`Rsqrt((2)/(15))`

B

`(2R)/(sqrt(15))`

C

`(4R)/(sqrt(15))`

D

`(R )/(4)`

Text Solution

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The correct Answer is:
B
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