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MHT CET Physics question

PhysicsSystems of Particles and Rotational MotionMHT CET

When a 12000 joule of work is done on a flywheel, its frequency of rotation increases from 10 Hz to 20 Hz. The moment of inertia of flywheel about its axis of rotation is ( = 10) [MHT-CET 2023, MHT-CET 2023]

Answer: (B)

Solution

gives

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Question ID VK-040856