Capillarity and Capillary Action
Capillarity and Capillary Action: Overview
This topic covers concepts, such as, Capillarity and Capillary Tube, Capillary Action, Calculation of Capillary Rise & Detergent Action in Removing Stain etc.
Important Questions on Capillarity and Capillary Action
On dipping one end of a capillary in liquid and inclining the capillary at an angles 30o and 60o with the vertical, the lengths of liquid columns in it are found to be and respectively. The ratio of and is

On dipping one end of a capillary in liquid and inclining the capillary at an angles and with the vertical, the lengths of liquid columns in it are found to be and respectively. The ratio of and is

Water rises in a vertical capillary tube upto a height of . If the tube is inclined at an angle of with the vertical, then upto what length the water will rise in the tube

Water rises in a vertical capillary tube up to a height of . If the tube is inclined at an angle of with the vertical, then up to what length the water will rise in the tube?

If the surface tension of water is , then the capillary rise in a tube of a diameter is (Take, angle of contact , density of water, , )

A capillary tube is immersed vertically in water and the height of the water column is . When this arrangement is taken into a mine of depth , the height of the water column is . If is the radius of the earth, the ratio is:

When a glass capillary tube of the radius is dipped in water, the water rises to a height of within it. Assuming the contact angle between water and glass to be , the surface tension of water is

Kerosene oil rises up in a wick of a lantern because of

Water rises to a height of in a capillary of height . If the tube is cut at a height of , then-

A capillary tube is immersed vertically in water and the height of the water column is . When this arrangement is taken into a mine of depth d, the height of the water column is . If R is the radius of earth, the ratio is :

Which of the following graphs may represent the relation between the capillary rise and the radius of the capillary?

Water rises in a capillary tube to a height . Choose false statement regarding capillary rise from the following.

Water rises in a capillary tube to a height . Choose false statement regarding capillary rise from the following.

If the surface tension of water is 0.06 N/m, then the capillary rise in a tube of a diameter 1 mm is

Water rises in a capillary tube to a height of In another capillary where the radius is one-third of it, how high will the water rise (in )?

Two large glass plates are dipped vertically in water of density at small separation . If surface tension of water is , then rise of water between the plates is

A fluid has a density of . If it rises to a height of in a diameter capillary tube, what is the surface tension of the liquid? Assume a contact angle of zero.

The height of a liquid in a fine capillary tube

Which of the following describes the shape of a detergent molecule accurately?

Three liquids of densities and (with ), having the same value of surface tension rise to the same height in three identical capillaries. The angles of contact and obey :
