The lower end of a capillary tube is dipped into water and it is observed that the water in capillary tube rises by 7.5 
. Find the radius of the capillary tube used, if surface tension of water is 
. Angle of contact between water and glass is 
and acceleration due to gravity is 
.
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
D
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