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A solid spere is rotating freely about i...

A solid spere is rotating freely about its symmetry axis in free space.The radius of the sphere is increased keeping its mass same.Which of the following physical quantites would remain constant for the sphere?

A

angular velocity

B

angular momentum

C

moment of inertia

D

rotational kinetic energy

Text Solution

Verified by Experts

The correct Answer is:
B
`L=Iomega`= constant. I will increase, so `omega` will decrease. And rotational KE will decrease as `KE = L^(2)//2I`.
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