The radius of the bore of a capillary tube is r and the angle of contact of the liquid is 
. When the tube is dipped in the liquid, the radius of curvature of the meniscus of liquid rising in the tube is
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
D
From figure, 
So radius of curvature of meniscus whose angle of contact
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