Physics - Fluid Question with Solution | TestHub

The ratio of surface tensions of mercury and water is given to be$7.5$, while the ratio of their densities is$13.6$. Their contact angles, with glass, are close to$135°$and$0°$, respectively. If it is observed that mercury gets depressed by an amount$h$in a capillary tube of radius$r_1$, while water rises by the same amount$h$in a capillary tube of radius$r_2$, then the ratio$\frac{r_1}{r_2}$is close to