The moment of inertia of a sphere of mass \( M \) and radius \( R \) about an axis passing throu...

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The moment of inertia of a sphere of mass \( M \) and radius \( R \) about an axis passing through its centre is \( 2 / 5 M R^{2} \). The radius of gyration of the sphere about a parallel axis to the above and tangent to the sphere is [EAMCET (Engg.) 2000]
(a) \( \frac{7}{5} R \)
(b) \( \frac{3}{5} R \)
(c) \( \left(\sqrt{\frac{7}{5}}\right) R \)
(d) \( \left(\sqrt{\frac{3}{5}}\right) R \)
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