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The young's modulus of a wire of length ...

The young's modulus of a wire of length (L) and radius (r ) is Y. If the length is reduced to` L/2` and radius `r/2` , then its young's modulus will be

A

`Y/2`

B

`Y`

C

`2Y`

D

`4Y`

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The correct Answer is:
B
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