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MHT CET Physics question

PhysicsSystems of Particles and Rotational MotionMHT CET

The ratio of radii of gyration of a circular ring and circular disc of the same mass and radius, about an axis passing through their centres and perpendicular to their planes is [MHT-CET 2020, MHT-CET 2020]

Answer: (C)

Solution

and , so the ratio is ;

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Question ID VK-041014