Explain the capillary action .

Explain the pumping action of the heart.

Explain the cause of capillary action in a capillary tube.

A capillary tube of radius r is immersed in water and water rises in to a height h. The mass of water in the capillary tube is 5g. Another capillary tube of radius 2 r is immersed in water. The mass of water that will rise in this tube is

The height of liquid column in the capillary on the surface of Moon ,if it is h on surface of the Earth is

Due to capillary action, a liquid will rise in the capillary tube if the angle of contact is

Explain the fall of liquid in the capillary an the basis of pressure difference.

Explain the rise of liquid in the capillary on the basis of pressure difference.

In a capillary tube experiment, a vertical 30 cm long capillary tube is dipped in water. The water rises up to a height of 10 cm due to capillary action. If this experiment is conducted in a freely falling elevator, the length of te water column becomes

A capillary tube is made of water proof material and is dipped in water taken in a beaker. The level of water in the capillary tube will be

In a capillary tube having area of cross - section A, water rises to a height h. If cross-sectional area is reduced to (A)/(9) , the rise of water in the capillary tube is