A rain drop of radius 0.3 mm has a terminal velocity in `"air" = 1 "m/s"`. The viscosity of air is
Channel: Doubtnut
Date: 23/08/2020

A rain drop of radius 0.3 mm has a terminal velocity in `"air" = 1 "m/s"`. The viscosity of air is `8 xx 10^(–5)` poise. The viscous force on it is