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A rod AB of length l is pivoted at an en...

A rod AB of length l is pivoted at an end A and freely rotated in a horizontal plane at an angular speed `omega` about a vertical axis passing through A. If coefficient of linear expansion of material of rod is `alpha`, find the percentage change in its angular velocity if temperature of system is incresed by `DeltaT`

A

`(alpha/_\T xx 100)%`

B

`(2alpha/_\T xx 100)%`

C

`(3alpha/_\T xx 100) xx 100%`

D

`(4alpha/_\T xx 100)%`

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