The capillary rise of a liquid in a tube depends upon:

Three liquids of densities ${\rho _1},{\rho _2}$ and ${\rho _3}$ (with ${\rho _1} > {\rho _2} > {\rho _3}$), having the same value of surface tension T, rise to the same height in three identical capillaries. The angles of contact ${heta _1},{heta _2}\,$ and ${heta _3}$ obey

A capillary tube of radius ${\rm{r}}$ is immersed in water and water rises in it to a height ${\rm{h}}$. The mass of the water in the capillary is ${\rm{5}}\,\,{\rm{g}}$. Another capillary tube of radius ${\rm{2r}}$ is immersed in water. The mass of water that will rise in this tube is:

A film of water is found between two straight parallel wires of length 10 cm each separated by 0.2 cm. If their separation is increased by 1 mm, while still maintaining their parallelism, how much work will have to be done? (surface tension of water is $7.2 imes {10^{ - 2}}{\rm{N}}{{\rm{m}}^{ - 1}}$)

Water rises to a height $h$ in a capillary tube. If the length of the capillary tube above the surface of water is made less than $h$, then:

A capillary tube of radius $r$ is immersed in water, and water rises in it to a height $h$. The mass of the water in the capillary is $5g$. Another capillary tube of radius $3r$ is immersed in water. The mass of water that will rise in this tube is:

A film of water is found between two straight parallel wires of length 10 cm each separated by 0.2 cm. If their separation is increased by 1 mm, while still maintaining their parallelism, how much work will have to be done? (surface tension of water is $7.2 imes {10^{ - 2}}{\rm{N}}{{\rm{m}}^{ - 1}}$)

A water film is formed between two parallel wires of 10 cm length. The distance of 0.5 cm between the wires is increased by 1 mm. Which will be the work done? (Surface tension of water =  $72{\rm{N}}{{\rm{m}}^{ - 1}})$

Two soap bubbles combine to form a single bubble. In this process, the change in volume and surface area are respectively V and A. If p is the atmospheric pressure, and T is the surface tension of the soap solution, the following relation is true.

The radius of a soap bubble is increased from $\frac{1}{{\sqrt \pi }}\,cm\,\,to\,\,\frac{2}{{\sqrt \pi }}\,\,cm$. If the surface tension of water is 30 dynes per cm, then the work done will be

A liquid rises to a height $h$ in a capillary tube of radius $r$. If another capillary tube with radius $2r$ is used with the same liquid, and the tube's length above the liquid surface is less than the expected rise height, what will be observed?