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A hot solid sphere is rotating about a d...

A hot solid sphere is rotating about a diameter at an angular velocity `omega_(0)`. If it cools so that its radius reduces to `(1)/(eta)` of its original value, its angular velocity becomes.

A

`omega ( 1+ Delta t)^(2)`

B

`( omega)/( ( 1+ 2 alpha Delta t))`

C

`omega ( 1+ alpha Delta t)`

D

`omega alpha Delta t`

Text Solution

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The correct Answer is:
B
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