The free surface of liquid has a tendency to contract . The property is called ……. .

Define surface of the liquid .

Why free surface of liquid tend to contract their surface ?

Why the surface of a liquid have tendency to minimize its area ?

A plate of area 2m^(2) is made to move horizontally with a speed of 2m//s by applying a horizontal tangential force over the free surface of a liquid. If the depth of the liquid is 1m and the liquid in contact with the bed is stationary. Coefficient of viscosity of liquid is 0.01 poise. Find the tangential force needed to move the plate.

When a body float on the surface of liquid ?

Surface tension of a liquid is independent of the area of the surface.

A surface of one liquid , is in contact with other liquid or surface of solid then in this case surface tension depend on what ?

If T is the surface tension of a liquid, the energy needed to break a liquid drop of radius R into 64 drops is :-