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A circular disc of radius R and thickness R/6 has moment of inertia I about an axis

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 tis 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

Options

(a) I
(b) 2I/5
(c) I/5
(d) I/10

Correct Answer:

I/5

Explanation:

No explanation available. Be the first to write the explanation for this question by commenting below.

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