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MHT CET Physics question

PhysicsSystems of Particles and Rotational MotionMHT CET

The moment of inertia of a sphere of mass and radius about an axis passing through its centre is . The radius of gyration of the sphere about a parallel axis to the above and tangent to the sphere is

Answer: (C)

Solution

I'=\frac25MR^2+MR^2=\frac75MR^2=MK^2, so ; forgets

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Question ID VK-040681