Capacitor

Two spherical conductors of capacities \(3 \mu \mathrm{F}\) and \(2 \mu \mathrm{F}\) are charged to same potential having radii \(3 \mathrm{~cm}\) and \(2 \mathrm{~cm}\) respectively. If '\(\sigma_1\)' and '\(\sigma_2\)' represent surface density of charge on respective conductors then \(\frac{\sigma_1}{\sigma_2}\) is