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When the temperature of a rod increases ...

When the temperature of a rod increases from t to `r+Delta t`, its moment of inertia increases from I to `I+Delta I`. If `alpha` is the value of `Delta I//I` is

A

`2alphaDeltat`

B

`alphaDeltaT`

C

`(alpha Deltat)/(2)`

D

`(Delta t)/(alpha)`

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The correct Answer is:
A
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