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The rise of liquid in a capillary tube h...

The rise of liquid in a capillary tube has a meniscus. If the angle of contact is greater than `90^@`, then shape of the meniscus is

A

A. concave

B

B. convex

C

C. flat

D

D. none of the above

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The correct Answer is:
B
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Why does water rise inside a capillary tube?

State reason:- Bond angle of PF_3 is greater than NH_3

How much will a liquid level be depressed inside a capillary tub of radius 0.02 cm, if the angle of contact of the liquid with the tube is 135^@ ? Surface tension of the liquid = 0.547N. m^-1 , density of the liquid =13.5xx10^3 kg. m^-3 and acceleration due to gravity =9.8 m. s^-2 .

Deduce an expression for the rise of liquid in a capillary tube. (Similar Question : Establish the mathematical expression of Jurine’s law).

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