First slide

Surface tension and surface energy

Question

When a capillary is dipped in water, water rises to a height h. If the length of the capillary is made less than h, then

Moderate

A

The water will come out
B

The water will not come out
C

The water will not rise
D

The water will rise but less than height of capillary

Solution

Even if capillary tube has no sufficient length, the liquid rise to the tip and adjust its angle of contact but not come out.

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