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Strain energy of a wire is 1.8 xx 10^(-3...

Strain energy of a wire is `1.8 xx 10^(-3) J` and strain energy per unit volume of the same wire under the same conditions is `6 xx 10^(-3) J//m^(3)`. The volume of the wire will be

A

`0.2 m^(3)`

B

`0.3 m^(3)`

C

`1.5 m^(3)`

D

`0.4 m^(3)`

Text Solution

Verified by Experts

The correct Answer is:
B
Volume `= ("Strain energy")/("Strain energy/volume")`
`:. V = (1.8 xx 10^(-3))/(6 xx 10^(-3)) = 0.3 m^(3)`
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