If $x$ longitudinal strain is produced in a wire of Young's modulus $y,$ then energy stored in the material of the wire per unit volume is
If $x$ longitudinal strain is produced in a wire of Young's modulus $y,$ then energy stored in the material of the wire per unit volume is
- [AIIMS 2001]
- A
$y{x^2}$
- B
$2\,y{x^2}$
- C
$\frac{1}{2}{y^2}x$
- D
$\frac{1}{2}y{x^2}$
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