Angle of Contact

A liquid will not wet the surface of a solid, if the angle of contact is

If the temperature decrease, then the contact angle will ____.

With the rise in temperature, cohesive force will ____.

In a capillary rise experiment, the water level rises to a height of $5 \mathrm{cm}$. If the same capillary tube is placed in water such that only $3 \mathrm{cm}$ of the tube projects outside the water level, then

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 :-

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 -

Angle of contact of a liquid with a solid depend on

Angle of contact of a liquid with a surface is ${95}^o$ . If a capillary of the same material as that of the surface is immersed in the same liquid, the liquid will

A mercury pallet is trapped between two horizontal glass plates having small space between them. The shape of mercury pallet is best described by -

If a liquid does not wet glass, its angle of contact is:

In a capillary rise experiment, the water level rises to a height of $5 \mathrm{cm}$. If the same capillary tube is placed in water such that only $3 \mathrm{cm}$ of the tube projects outside the water level, then

A liquid does not wet the solid surface, if the angle of contact is:

In a $\mathrm{U}$ -tube the radii of two columns are respectively ${\mathrm{r}}_1$ and ${\mathrm{r}}_2$ . When a liquid of density $\mathrm{\rho }\left(\mathrm{\theta }=0°\right)$ is filled in it, a level difference of $\mathrm{h}$ is observed on two arms, then the surface tension of the liquid is -

A mercury pallet is trapped between two horizontal glass plates having small space between them. The shape of mercury pallet is best described by -

In the bottom of a vessel with mercury of density $\mathrm{\rho }$ there is a round hole of radius $\mathrm{r}$. At what maximum height of the mercury layer will the liquid still not flow out through this hole? $\left(\mathrm{S}\mathrm{u}\mathrm{r}\mathrm{f}\mathrm{a}\mathrm{c}\mathrm{e}\mathrm{ }\mathrm{t}\mathrm{e}\mathrm{n}\mathrm{s}\mathrm{i}\mathrm{o}\mathrm{n}=\mathrm{T}\right)$ -

A mercury pallet is trapped between two horizontal glass plates having small space between them. The shape of mercury pallet is best described by -

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 -

For a liquid which is rising in a capillary, the angle of contact is

The meniscus of mercury in a capillary glass tube, is

A liquid does not wet the solid surface if the angle of contact is