A uniform metal rod of length L and mass...

A uniform metal rod of length `L` and mass `M` is rotating about an axis passing throuth one of the ends perpendicular to the rod with angular speed `omega`. If the temperature increases by `t^@C` then the change in its angular velocity is proportional to which of the following ? (Coefficient of linear expansion of rod `=alpha`)

`sqrt(omega)`

`omega`

`omega^(2)`

`1//omega`

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