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MHT CET Physics question

PhysicsSystems of Particles and Rotational MotionMHT CET

A ring of mass 10 kg and diameter 0.4 m is rotated about its axis. It makes 2100 revolutions per minute; Its angular momentum will be:

Answer: (B)

Solution

and rad/s, so $L=Iω=88\

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Question ID VK-040398