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Two wires of the same material and lengt...

Two wires of the same material and length but diameter in the ratic 1: 2 are stretched by the same load. The ratio of elastic potential energy per unit volume for the two wires is

A

`1:1`

B

`2:1`

C

`4:1`

D

`16:1`

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The correct Answer is:
D
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