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A uniform metallic rod rotates about it...

A uniform metallic rod rotates about its perpendicular bisector with constant angualr speed. If it is heated uniformly to raise its temperature slightly, then

A

its speed of rotation increases

B

its speed of ratation decreases

C

its speed of rotation decreases

D

its speed increases because its moment of inertai increases

Text Solution

Verified by Experts

The correct Answer is:
B
`(DeltaI)/(I) = 2(DeltaR)/(R)`
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