Two wires each of radius 0.2 cm and negligible mass, one made of steel and the other made of brass are loaded as shown in the figure. The elongation…

Two wires each of radius $\displaystyle 0.2$ cm and negligible mass, one made of steel and the other made of brass are loaded as shown in the figure. The elongation of the steel wire is $\displaystyle \_\_\_\_$ $\displaystyle \times 10^{-6} \mathrm{~m}$. [Young's modulus for steel $\displaystyle =2 \times 10^{11} \mathrm{Nm}^{-2}$ and $\displaystyle \mathrm{g}=10 \mathrm{~ms}^{-2}$