A capillary tube made of glass of radius 
is dipped vertically in a beaker filled with methylene iodide (surface tension 
, density 
) which rises to height 
in the tube. It is observed that the two tangents drawn from liquid-glass interfaces (from opp. sides of the capillary) make an angle of 
with one another. Then h is close to 
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
B
JEE Main 2020
Angle of contact 
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