Coulomb force F versus (1/(r^2)) graphs for two pairs of point charges ( q_1 and q_2 ) and ( q_2 and q_3 ) are shown in the figure. The ratio of…

Coulomb force F versus $\displaystyle \left(\frac{1}{\mathrm{r}^{2}}\right)$ graphs for two pairs of point charges ( $\displaystyle \mathrm{q}_{1}$ and $\displaystyle \mathrm{q}_{2}$ ) and ( $\displaystyle \mathrm{q}_{2}$ and $\displaystyle \mathrm{q}_{3}$ ) are shown in the figure. The ratio of charges $\displaystyle \left(\frac{\mathrm{q}_{1}}{\mathrm{q}_{3}}\right)$ is :