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

Define surface of the liquid .

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

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

Why free surface of liquid tend to contract their surface ?

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.

The ring of radius 1 m is lying on the surface of liquid. It is lifted. It is lifted from the liquid surface by a force of 4 newtons in such a way that the liquid film in it remains intact. The surface tension of liquid will be

When a body float on the surface of liquid ?

A solid sphere of radius r made of a soft material of bulk modulus K is surrounded by a liquid in a cylindrical container. A massless piston of area a floats on the surface of the liquid, covering entire cross section of cylindrical container. When a mass m is placed on the surface of the piston to compress the liquid, the fractional decrement in the radius of the sphere, ((dr)/(r)), is.....

A solid sphere of radius R made of a material of bulk modulus K is surrounded by a liquid in a cylindrical container. A massless pistion of area A floats on the surface of the liquid. When a mass M is placed on the piston to compress the liquid the fractional change in the radius of the sphere, deltaR//R , is .............

A large pressure exerted on the surface of liquid having shape of ……..(concave /convex)