Under isothermal condition two soap bubbles of radii `r_(1)` and `r_(2)` coalesce to
Channel: Doubtnut
Date: 2020-07-12

Under isothermal condition two soap bubbles of radii `r_(1)` and `r_(2)` coalesce to form a single bubble of radius r. The external pressure is `p_(0)`. Find the surface tension of the soap in terms of the given parameters.