Mercury sticks to the walls of the capillary tube.

The lower end of a capillary tube of radius 1 mm is dipped vertically into mercury. (a) Find the depression of mercury column in the capillary. (b) If the length dipped inside is half the answer of part (a), find the angle made by the mercury surface at the end of the capillary with the vertical. Surface tension of mercury =0.465Nm^-1 and the contact angle of mercury with glass =135^@ .

A uniform capillary tube of inner radius r is dipped vertically into a beaker filled with water. The water rises to a height h in the capillary tube above the water surface in the beaker. The surface tension of water is sigma . The angle of contact between water and the wall of the capillary tube is theta . Ignore the mass of water in the meniscus. Which of the following statements is (are) true?

Water rises in a glass capillary tube, but descends if the bore of the capillary tube is coated with paraffin wax. Why ?

Water rises to a height of 30 mm in a capillary tube. If the radius of the capillary tube is made 3//4 of its previous value. The height to which the water will rise in the tube is

"Water stick to the walls of a glass tube, but mercury does not." Why?

An open capillary tube is lowered in vessel with mercury. The difference between the levels of the mecury in the vessel and in the capillary tube /_\h=4.6 mm . What is the radius of curvature of the mercury meniscus in the capillary tube? Surface tension of mercury is 0.46N//m , density of mercury is 13.6gm//"cc" .

A capillary tube is attached horizontally to a constant pressure head arrangement. If the radius of the capillary tube is increased by 10% , then the rate of flow of the liquid shall change nearly by

Assertion : The water rises higher in a capillary tube of small diameter than in the capillary tube of large diameter. Reason : Height through which liquid rise in capillary tube inversely proportional to the diameter of capillary tube.

A capillary tube of radius 1 mm is kept vertical with the lower end in water. (a) Find the height of water raised in the capillary. (b) If the length of the capillary tube is half the answer of part (a), find the angle theta made by the water surface in the capillary with the wall.

A capillary tube of the radius r is immersed in water and water rise in it to a height H. Mass of water in the capillary tube is m. If the capillary of radius 2r is taken and dipped in water, the mass of water that will rise in the capillary tube will be