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JEE Main Physics question

PhysicsSystems of Particles and Rotational MotionJEE Main

The ratio of the radii of gyration of a circular disc about a tangential axis in the plane of the disc, and of a circular ring of the same radius about a tangential axis in the plane of the ring, is

Answer: (D)

Solution

Disc, tangential in-plane: . Ring, tangential in-plane: $=Missing argument for \dfrac\dfrac ⇒

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Question ID VK-158507