When a large bubble rises from the bottom of a lake to the surface, its radius doubles. If atmospheric pressure is equal to that of a column of water height H, then the depth of the lake is

The excess pressure of one soap bubble is four times more than the other. Then the ratio of the volume of the first bubble to another one is 

There are two liquid drops of different radii. The excess pressure inside over the outside is 

If pressure at half the depth of a lake is equal to 2/3 pressure at the bottom of the lake then what is the depth of the lake

In capillary tube, pressure below the curved surface of water will be 

Two soap bubbles have different radii but their surface tension is the same. Mark the correct statement

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

Two parallel glass plates are dipped partly in the liquid of density 'd' keeping them vertical. If the distance between the plates is 'x', surface tension for liquids is T and the angle of contact is $\mathrm{\theta }$, then rise of liquid between the plates due to capillary will be 

Water rises in a capillary tube to a certain height such that the upward force due to surface tension is balanced by $75\times {10}^{-4} \mathrm{N}$ force due to the weight of the liquid. If the surface tension of water is $6\times {10}^{-2} {\mathrm{Nm}}^{-1}$, the inner circumference of the capillary must be

Two capillary tubes P and Q are dipped in water. The height of water level in capillary P is 2/3 to the height in Q capillary. The ratio of their diameters is

A vessel, whose bottom has round holes with a diameter of 0.1mm, is filled with water. The maximum height to which the water can be filled without leakage is
(S.T. of water =75 dyne/cm, g =1000 $\mathrm{cm}/{\mathrm{s}}^2$)

By inserting a capillary tube up to a depth l in water, the water rises to a height of h ( h<l). If the lower end of the capillary is closed inside the water and the capillary is taken out and closed-end opened, to what height the water will remain in the tube?

A capillary tube when immersed vertically in liquid records a rise of 3 cm. If the tube is immersed in the liquid at an angle of $60°$ with the vertical. The length of the liquid column along the tube is 

The action of a nib split at the top is explained by

The correct relation is

During the capillary rise of a liquid in a capillary tube, the surface of contact that remains constant is of

A shell having a hole of radius r is dipped in water. It holds the water up to a depth of h then the value of r is

In a capillary tube, the water rises by 1.2 mm. The height of water that will rise in another capillary tube having half the radius of the first, is 

If the capillary experiment is performed in a vacuum, then for a liquid there capillary rise 

If liquid level falls in a capillary then radius of capillary will

Water rises to a height h in a capillary at the surface of earth. On the surface of the moon, the height of water column in the same capillary will be- 

Two capillary tubes of the same diameter are put vertically one each in two liquids whose relative densities are 0.8 and 0.6 and surface tensions are 60 and 50 dyne/cm respectively Ratio of heights of liquids in the two tubes $\frac{{\mathrm{h}}_1}{{\mathrm{h}}_2}$ is

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

Kerosene oil rises up the wick in a lantern

Water rises against gravity in a capillary tube when its one end is dipped into water because

There is a horizontal film of soap solution. On it, a thread is placed in the form of a loop. The film is pierced inside the loop and the thread becomes a circular loop of radius R. If the surface tension of the loop is T, then what will be the tension in the thread?

A large number of water drops each of radius r combines to have a drop of radius R. If the surface tension is T and the mechanical equivalent of heat is J, then the rise in temperature will be

In a surface tension experiment with a capillary tube, water rises upto 0.1 m. If the same experiment is repeated on an artificial satellite, which is revolving around the earth, water will rise in the capillary tube upto a height of-

The correct curve between the height of depression h of liquid in a capillary tube and its radius is

A soap bubble is blown with the help of a mechanical pump at the mouth of a tube. The pump produces a certain increase per minute in the volume of the bubble, irrespective of its internal pressure. The graph between the pressure inside the soap bubble and time t will be-