A metallic rod of Young's modulus 2xx10^...

A metallic rod of Young's modulus `2xx10^(11)Nm^(2)` undergoes a strain of 0.5% . Then the energy stored per unit volume in the rod will be

A

`2.5xx10^(6)J//m^(3)`

B

`5xx10^(8)J//m^(3)`

C

`2.5xx10^(8)J//m^(3)`

D

`0.5xx10^(11)J//m^(3)`

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The correct Answer is:

A

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