Choose the correct option. Select correct statement about the formula (expression) of moment of inertia (M.I.) in terms of mass M of the object and some of its distance parameter/s, such as R, L, etc.

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When rotating about their central axis, a hollow right circular cone and a disc have the same expression for the M.I. Explanation: Expression for M.I of a hollow right circular cone is given by: M.I = ( m $\times$ R^2 )/ 2 Here, m and R are mass and radius of gyration respectively. And expression for M.I of disc is given by: M.I = ( m $\times$ R^2 )/ 2 Here, m and R are mass and radius of gyration, respectively. Thus, when rotating about their central axis, a hollow right circular cone and a disc have the same expression for the M.I.

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