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KEAM 2021 Physics and Chemistry Solved Paper

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Question : 56

Total: 120

When no external torque acts on a rotating system,

angular momentum of the system is not conserved
its rotational kinetic energy is conserved
its rotational kinetic energy is independent of moment of inertia
its rotational kinetic energy is directly proportional to moment of inertia
its rotational kinetic energy is inversely proportional to moment of inertia

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