One end of a metal wire is fixed to a ceiling and a load of 2 kg hangs from the other end. A similar wire is attached to the bottom of the load and…

One end of a metal wire is fixed to a ceiling and a load of $\displaystyle 2$ kg hangs from the other end. A similar wire is attached to the bottom of the load and another load of $\displaystyle 1$ kg hangs from this lower wire. Then the ratio of longitudinal strain of upper wire to that of the lower wire will be $\displaystyle \_\_\_\_$. [Area of cross section of wire $\displaystyle =0.005 \mathrm{~cm}^2, \mathrm{Y}=2 \times 10^{11} \mathrm{Nm}^{-2}$ and $\displaystyle \mathrm{g}=10 \mathrm{~ms}^{-2}$ ]