When a liquid rises inside a capillary tube, the weight of the liquid in the tube is supported

In a capillary tube of radius $\text{'}\mathrm{R}\text{'}$, a straight thin metal wire of radius 'r' $(\mathrm{R}>\mathrm{r})$ is inserted symmetrically and one end of the combination is dipped vertically in water such that the lower end of the combination is at same level. The rise of water in the capillary tube is $[\mathrm{T}=$surface tension of water, $\rho =$density of water, $\mathrm{g}=$gravitational acceleration $]$

A liquid rises to a height of $1.8\mathrm{cm}$ in a glass capillary "A" Another glass capillary 'B' having diameter $90\%$ of capillary "A" is immersed in the same liquid. The rise of liquid in capillary $\text{'}B\text{'}$ is 

Agricultural farm is ploughed because

The height to which a liquid will rise in a capillary tube is

A false statement is:

When the temperature is increased the angle of contact of a liquid _____.

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