Water rises to height h in a capillary tube. If the length of capillary tube above the surface of water is made less than h, then
Text Solution
Verified by ExpertsThe correct answer is:
A
Let R be the radius of the capillary tube or radius of meniscus, 
be the surface tension and 
be the density of the liquid.
Thus, 
When height is reduced, then the radius of meniscus increases.
Therefore water rises upto the top of capillary tube and stays there without overflowing.
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