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The moment of inertia of a rod about its...

The moment of inertia of a rod about its perpendicular bisector is I . When the temperature of the rod is increased by `Delta T` , the increase in the moment of inertia of the rod about the same axis is (Here , `alpha` is the coefficient of linear expansion of the rod )

A

`alphaIDeltaT`

B

`2alphaIDeltaT`

C

`4alphaIDeltaT`

D

`(alphaIDeltaT)/2`

Text Solution

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The correct Answer is:
B
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