Two bodies have their moments of inertia I and 2I respectively about their axis of rotation. If their kinetic energies of rotation are equal, their angular momenta will be in the ratio:
A
2:1
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B
1:2
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C
√2:1
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D
1:√2
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Solution
The correct option is D1:√2 Relation between angular momentum and kinetic energy is L=√2IEk
Here, kinetic energy (Ek) is constant, ∴L∝√I L1L2=√I2I=1√2