The surface tension for pure water in a capil | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(D) The formula for the rise of a liquid in a capillary tube is given by $T = \frac{rhho g}{2 \cos 	heta}$,where $T$ is the surface tension,$r$ is

Vedclass · Accepted Answer

$\frac{hr\rho g}{2}$

Vedclass · Answer

(D) The formula for the rise of a liquid in a capillary tube is given by $T = \frac{rhho g}{2 \cos 	heta}$,where $T$ is the surface tension,$r$ is the radius of the capillary tube,$h$ is the height of the liquid column,$ho$ is the density of the liquid,$g$ is the acceleration due to gravity,and $	heta$ is the angle of contact.For pure water in a glass capillary tube,the angle of contact $	heta$ is approximately $0^\circ$.Since $\cos(0^\circ) = 1$,the formula simplifies to $T = \frac{rhho g}{2}$.

The surface tension for pure water in a capillary tube experiment is

Similar Questions

What is capillary action? Derive the formula for the rise of liquid in a capillary tube immersed vertically in a liquid.

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

$A$ $20 \ cm$ long capillary tube is dipped in water. The water rises up to $8 \ cm$. If the entire arrangement is put in a freely falling elevator,the length of the water column in the capillary tube will be (in $cm$)?

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 $\theta_1, \theta_2$ and $\theta_3$ obey:

Why does the water rise in a capillary tube? Explain.

Vedclass Test Series

Exam Paper Generator

Online Exam Module