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Water rises to height h in capillary tub...

Water rises to height `h` in capillary tube. If the length of capillary tube above the surface of water is made less than `h` then

A

Water dose not rise at all

B

Water rises upto the of capillary tube and then starts overflowing like a fountain

C

Water rises upto the top of capillary tube and stays there without overflowing

D

Water rises upto a point little below the top and stays there

Text Solution

Verified by Experts

The correct Answer is:
C
For rise of liquid in a capillary tube of radius R, the relation h R=a constant, holds good. If h is small then R (= radius of curvature of the liquid meniscus, will change so that h R = a constant. Thus, option C is true.
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