When a body is strained, energy stored per unit volume is (Y-Young's modulus)
- $\frac{(stress)}{Y}$
- $\frac{ Y\times (strain)}{2}$
- $\frac{(stress)^2}{2Y}$
- $ Y\times (strain)^2$
- $\frac1{2} \frac{(stress)}{Y}$
The Correct Option is
Solution and Explanation
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