Question

The moment of inertia of a sphere of mass M and radius R about an axis passing through its centre is $\frac{2}{5}$ MR2 The radius of gyration of the sphere about a parallel axis to the above and tangent to the sphere is

• A. $\frac{7}{5}$R
• B. $\frac{3}{5}$R
• C. ($\sqrt\frac{7}{5}$)R
• D. ($\sqrt\frac{3}{5}$)R

Answer 1

Answer: (C)

($\sqrt\frac{7}{5}$)R

Answer 2

The correct option is (C) : ($\sqrt\frac{7}{5}$)R