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MHT CET Physics question

PhysicsSystems of Particles and Rotational MotionMHT CET

A dancer is standing on a stool rotating about the vertical axis passing through its centre. She pulls her arm towards the body reducing her moment of inertia by a factor of n. The new angular speed of turn table is proportional to

Answer: (B)

Solution

gives , so the angular speed is not

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Question ID VK-040340