Properties Of Solids And Liquids Question 160

Question: Due to capillary action, a liquid will rise in a tube, if the angle of contact is[DPMT 1984; AFMC 1988; BHU 2001]

Options:

A) Acute

B)Obtuse

C) 90°

D)Zero

Show Answer

Answer:

Correct Answer: A

Solution:

$ h=\frac{2T\cos \theta }{rdg} $ . If q is less than 90° then h will be positive



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