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Question

Stress developed in the stretched copper wire is 6×105 N/m2. If young's modulus of copper wire is 1.2×1011 N/m2, find the energy stored per unit volume in the stretched wire.

A
0.5 J/m3
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B
1.5 J/m3
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C
2.5 J/m3
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D
3 J/m3
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