Angle of Contact

A large tank is filled with two liquids of specific gravities $\text{2}\text{σ}$ and $\text{σ}$. Two holes are made on the wall of the tank as shown. Find the ratio of the distances from $O$ of the points on the ground where the jets from holes $A \mathrm{and} B$ strike.​

The volume of an air bubble is doubled as it rises from the bottom of a lake to its surface. If the atmospheric pressure is H m of mercury & the density of mercury is n times that of lake water. Find the depth of the lake

Pressure inside two soap bubbles are 1.01 and 1.02 atmospheres. Ratio between their volumes is

The excess pressure inside an air bubble of radius r just below the surface of water is ​$P_1$ . The pressure inside a drop of the same radius just outside the surface is $P_2$ . If T is surface tension then

If the radius of a soap bubble is four times that of another,then the ratio of their excess pressures will be

What happens when angle of contact is 90?

What is angle of contact in capillary tube?

What is the angle of contact of a liquid?

What is angle of contact Class 12?

What are characteristics of angle of contact?

What is the effect of temperature on angle of contact?

What is the physical significance of angle of contact?

What is meant by angle of contact state its four characteristics?

What are the characteristics of angle?

Water forms droplets on lotus leaf as while spreads over a clean plastic. Draw the force diagram at the interface.

Two soap bubbles $A$ and $B$ are kept in a closed chamber and air pressure maintained at $8 \mathrm{N}/{\mathrm{m}}^2$. The radius  of bubbles $A$ and $B$ are $2 \mathrm{cm}$ and $4 \mathrm{cm}$ respectively.  The surface tension of the soap-water used to make bubbles is $0.04 \mathrm{N}/\mathrm{m}$. Then  ratio $n_B/n_A$is :-

 Here $n_A$ and $n_B$ are the number of moles of air in bubbles $A$ and $B$ respectively (Neglect the effect of gravity)

The grease deposited on a glass plate can be easily removed by cleaning the glass with hot water containing detergent powder, because the detergent powder :-

If the excess pressure inside a soap bubble is balanced by oil column of height $2 \mathrm{mm}$, then the surface tension of soap solution will be $(r=1 \mathrm{c}\mathrm{m}\mathrm{ }\mathrm{a}\mathrm{n}\mathrm{d}\mathrm{ }\mathrm{d}\mathrm{e}\mathrm{n}\mathrm{s}\mathrm{i}\mathrm{t}\mathrm{y}\mathrm{ }d=0.8 \mathrm{g}\mathrm{ }{\mathrm{c}\mathrm{c}}^{-1})\mathrm{, }$ $g=10 {\text{m s}}^{-2}$

What should be the pressure inside a small air bubble of $0.1 \mathrm{mm}$ radius situated just below the surface of water? Surface tension of water $=72\times {10}^{-3}$ N/m and atmospheric pressure $=1.013\times {10}^5\frac{N}{m^2}$ .

A mosquito with 8 legs stands on water surface and each leg makes depression of radius $a$. If the surface tension and angle of contact are $T$ and zero respectively then the weight of mosquito is -