When a part of a straight capillary tube is p | vedclass

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

Question

(D) The height $h$ of a liquid in a capillary tube is given by the formula: $h = \frac{2T \cos 	heta}{ho gr}$.Assuming the angle of contact $	heta

Vedclass · Accepted Answer

+$1$

Vedclass · Answer

(D) The height $h$ of a liquid in a capillary tube is given by the formula: $h = \frac{2T \cos 	heta}{ho gr}$.Assuming the angle of contact $	heta$ and acceleration due to gravity $g$ remain constant, the relative change is given by: $\frac{\Delta h}{h} = \frac{\Delta T}{T} - \frac{\Delta ho}{ho} - \frac{\Delta r}{r}$.Given that $T$, $ho$, and $r$ each decrease by $1\%$, we have $\frac{\Delta T}{T} = -0.01$, $\frac{\Delta ho}{ho} = -0.01$, and $\frac{\Delta r}{r} = -0.01$.Substituting these values: $\frac{\Delta h}{h} = (-0.01) - (-0.01) - (-0.01) = -0.01 + 0.01 + 0.01 = +0.01$.Therefore, the height will change by $+1\%$.

Similar Questions

Water rises in a capillary tube of radius $r$ up to a height $h$. The mass of water in the capillary is $m$. The mass of water that will rise in a capillary of radius $r/3$ will be:

The heat evolved for the rise of water when one end of the capillary tube of radius $r$ is immersed vertically into water is (Assume surface tension $= T$ and density of water to be $\rho$)

When a capillary tube is dipped vertically in water,the water rises to a height of $2.0 \, cm$. If the capillary tube is tilted at an angle of $60^\circ$ with the vertical,what will be the length of the water column in the capillary tube in $cm$?

The lower end of a glass capillary tube is dipped in water. Water rises to a height of $8 \ cm$. The tube is then broken at a height of $6 \ cm$. The new height of water column and new angle of contact will be $:-$

Vedclass Test Series

Exam Paper Generator

Online Exam Module