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MHT CET Physics question

PhysicsSystems of Particles and Rotational MotionMHT CET

Two bodies rotate with kinetic energy 'K' and 'K'. Moment of inertia about their axis of rotation is 'I' and 'I'. If I = 3I and K = 27K then the ratio their angular momenta 'L' to 'L' is [MHT-CET 2019, MHT-CET 2019]

Answer: (B)

Solution

, so and

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Question ID VK-041083