Due to capillary action,a liquid will rise in | vedclass

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

Question

(A) The height of the liquid column in a capillary tube is given by the formula $h = \frac{2T \cos 	heta}{rdg}$,where $T$ is the surface tension,$	h

Vedclass · Accepted Answer

Acute

Vedclass · Answer

(A) The height of the liquid column in a capillary tube is given by the formula $h = \frac{2T \cos 	heta}{rdg}$,where $T$ is the surface tension,$	heta$ is the angle of contact,$r$ is the radius of the tube,$d$ is the density of the liquid,and $g$ is the acceleration due to gravity.For the liquid to rise in the tube,the height $h$ must be positive.Since $T, r, d,$ and $g$ are always positive,the sign of $h$ depends on $\cos 	heta$.If the angle of contact $	heta$ is acute (i.e.,$0^{\circ} \le 	heta Therefore,the correct option is $A$.

Due to capillary action,a liquid will rise in a tube,if the angle of contact is

Similar Questions

$A$ glass plate is partly dipped vertically in mercury and the angle of contact is measured. If the plate is inclined,then the angle of contact will

The wettability of a surface by a liquid depends primarily on

The angle of contact is $120^{\circ}$ when a cylindrical rod is vertically placed in a liquid. If the same rod is placed horizontally in the liquid, then the angle of contact is (in $^{\circ}$)

$A$ liquid wets a solid completely. The meniscus of the liquid in a sufficiently long tube is

$A$ liquid does not wet the sides of a solid,if the angle of contact is

Vedclass Test Series

Exam Paper Generator

Online Exam Module