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A brass wire of length 1m and area of cr...

A brass wire of length 1m and area of cross section `1 mm^(2)` is stretched by applying a force of 20N. then the work done per unit volume of the wire is `(Y_("brass")=0.91xx10^(11)Nm^(-2))`

A

2198 J

B

1049 J

C

4422 J

D

4521 J

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