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A uniform cylindrical rod of mass m and ...

A uniform cylindrical rod of mass `m` and length `L` is rotating with an angular velocity `omega`. The axis of rotation is perpendicular to its axis of symmetry and passes through one of its edge faces. If the room temperature increases by `t` and the coefficient of linear expansion is `alpha`, the change in its angular velocity is

A

`2 alphaomegat`

B

`alphaomegat`

C

`3/2alpha omegat`

D

`(alphaomegat)/2`

Text Solution

Verified by Experts

The correct Answer is:
A
`Iprop1/omegaimplies(Deltaomega)/(omega)=-(DeltaI)/I=2alphaDeltat`
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