Question: A solid sphere of mass M, radius R and having moment of inertia about an axis passing through the centre of mass as I,

A solid sphere of mass M, radius R and having moment of

A solid sphere of mass M, radius R and having moment of inertia about an 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 plane remains I. Then, radius of the disc will be 2 15 (A) (C) 2R 15 4R 15 (B) R 4

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