The work per unit volume to stretch the ...

The work per unit volume to stretch the length by `1%` of a wire with cross sectional area of `1mm^2` will be. `[Y=9xx10^(11)(N)/(m^2)`]

A

`9 xx 10^(11) J`

B

`4.5 xx 10^(7) J`

C

`9 xx 10^(7) J`

D

`4.5 xx 10^(11) J`

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The correct Answer is:

B

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