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MHT CET Physics question

PhysicsSystems of Particles and Rotational MotionMHT CET

A ring of mass 'M' and radius 'R' is rotating about an axis passing through centre and perpendicular to its plane. Two particles of mass 'm' are placed gently on the opposite ends of a diameter of the ring. Now the angular speed of the ring is ( = initial angular speed of ring) [MHT-CET 2022, MHT-CET 2022]

Answer: (C)

Solution

Angular momentum is conserved: , so ; (a) and

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Question ID VK-040886