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A brass disc is rotating about its axis....

A brass disc is rotating about its axis. If temperature of disc is increased then its

A

radius of gyration increases, but moment of inertia remains the same

B

moment of inertia increases but radius of gyration remains the same

C

radius of gyration, moment of inertia both remain the same

D

radius of gyration, moment of inertia both increase

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The correct Answer is:
D
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