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Statement-1: Temperature of a rod is inc...

Statement-`1`: Temperature of a rod is increased and again cooled to same initial temperature then itsfinal length is equal to original length provided there is no deformation take place.
Statement-`2`: For a small temperature change , length of a rod varies as `l = l_(0)(1+alphaDeltaT)` provided `alpha DeltaT ltlt1`. Here symbol have their usual meaning.

A

Statement -`1` is True , Statement -`2` is True , Statement -`2` is correct explanation for Statement - `1`

B

Statement -`1` is True , Statement -`2` is True , Statement -`2` is not correct explanation for Statement - `1`

C

Statement -`1` is True , Statement -`2` is False.

D

Statement -`1` is False , Statement -`2` is True.

Text Solution

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The correct Answer is:
B
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