Two parallel glass plates separated by a small distance x ar dipped partly in a liquid of density ' d keeping them vertical .The surface tension of the liquid is T and angle of contact is `theta ` . What is the rise of the liquid between the plates due to capillarity ?

Options

A. `(2T cos theta )/(xdg)`
B. `(2T)/(xdg cos theta)`
C. `(T cos theta)/(xdg)`
D. `(T cos theta )/(xd)`

Answer

A

Explanation

`T = (rhdg)/(2 cos theta) " " :. h = (2T cos theta )/(rdg) `
In this case, ` r= x " " :. h = (2T cos theta)/(xdg)`