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A brass rod of cross-sectional area 1cm^...

A brass rod of cross-sectional area `1cm^(2)` and length `0.2 cm` is compressed lengthwise by a weight of `5 kg`. If Young's modulus of elasticity of brass is `1 xx 10^(11) N//m^(2)` and `g=10 m//sec^(2)`, then increase in the energy of the rod will be

A

`10^(-5) J`

B

`2.5 xx 10^(-5) J`

C

`5 xx 10^(-5) J`

D

`2.5 xx 10^(-4) J`

Text Solution

Verified by Experts

The correct Answer is:
B
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