A copper rod of length 1 m is stretched by 30 mm within elastic limit. The energy stored in the stretched rod is converted into heat, then the rise…

A copper rod of length $\displaystyle 1$ m is stretched by $\displaystyle 30$ mm within elastic limit. The energy stored in the stretched rod is converted into heat, then the rise in temperature of the rod is \_\_\_\_. [Given Young's Modulus $\displaystyle \gamma=1.05 \times 10^{11} \mathrm{~N} / \mathrm{m}^2$ Specific gravity of copper $\displaystyle =9$ specific heat capacity $\displaystyle \mathrm{S}=100 \mathrm{Cal} / \mathrm{kg} /{ }^{\circ} \mathrm{C}$ ]