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MHT CET Physics question

PhysicsSystems of Particles and Rotational MotionMHT CET

The ratio of radius of gyration of a ring to that of a disc (Both circular) of same radius and mass, about a tangential axis perpendicular to the plane is [MHT-CET 2019, MHT-CET 2019]

Answer: (B)

Solution

Tangent perpendicular to the plane: and , so ;

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Question ID VK-041062