A small drop of water of surface tension S is squeezed between two clean glass plates so that a thin layar of thickness d and area A is formed between them. If the angle of contact is zero, what is the force required to pull the plates apart?

A small drop of water of surface tension sigma is squeezed between two clean glass plates so that a thin layer of thickness d and area A is formed between them. If the angle of contact is zero, what is the force required to pull the plates apart?

A drop of water of mass m and density rho is placed between two weill cleaned glass plates, the distance between which is d . What is the force of attraction between the plates? (T= surface tension)

A drop of water of mass m and density rho is placed between two weill cleaned glass plates, the distance between which is d . What is the force of attraction between the plates? (T= surface tension)

A small drop of water kept pressed between two glass plates spreads as a circle of diameter 10cm. If the distance between the plates is 0.005 mm, and surface tension of water is 0.072 Nm^(-1) , what force will be required to separate the plates ?