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 isA. IB. `(I)/(5)`C. `(I)/(10)`D. `(2I)/(8)`

A circular disc of radius `R` and thickness `R//6` has moment of inert

1.	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 isA. IB. `(I)/(5)`C. `(I)/(10)`D. `(2I)/(8)`
Answer» Correct Answer - B `I_(d)=(MR^(2))/(2)`

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