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

Question:

7.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

Options :

a) (7/5)R
b) (3/5)R
c) (√7/5)R
d) (√3/5)R

Answer :

c) (√7/5)R

Answer Steps :

Solution :-

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