Consider a rain drop falling at terminal speed. For what radius `(R)` of the drop can we disregard the influence of gravity on its shape? Surface tension and density of water are `T` and `rho` respectively.

The excess pressure inside the drop of a liquid of surface tension T and radius of drop r is

A drop of radius r is broken into n equal drips. Calulate the work done if surface tension of water is T.

A water drop of radius R is split into n smaller drops each of radius r. IF T is the surface tension of water, then what the work done in this process.

A water drop of radius R is split into n smaller drops , each of radius r. If T is the surface tension of water ,then the work done in the process is

1000 small drops of water each of radius 'r' are joined together to form a single drop of water During the process the change in energy has raised the temerature . If T is the surface tension of the water , d is density , the rise in temperature is

Internal pressure inside a liquid drop of radius r and surface tension T is

Internal pressure inside a liquid drop of radius r and surface tension T is

Two mercury drops (each of radius r) merge to form a bigger drop. The surface energy of the bigger drop, if T is the surface tension is