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A steel wire of length 1.5 m and area of...

A steel wire of length 1.5 m and area of cross section `1.5mm^2` is stretched by 1.5cm. Then the work done per unit volume.

A

`1xx10^(7)J//m^(3)`

B

`2xx10^(7)J//m^(3)`

C

`3xx10^(7)J//m^(3)`

D

`4xx10^(7)J//m^(3)`

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