The angular speed of a body changes from ω1 and ω2 without applying an external torque but due to change in its moment of inertia. The ratio of change in its moment of inertia. The ratio of radii of gyration in the two cases is
1
ω2 ∶ ω1
2
ω1 ∶ ω2
3
\(\sqrt{\omega_1} : \sqrt{\omega_2}\)
4
\(\sqrt{\omega_2} : \sqrt{\omega_1}\)
5
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