Engineering
Physics
Surface Tension
Question

A 20 cm long capillary tube is dipped in water. The water rises upto 8 cm. If the entire arrangement is put in a freely falling elevator, the length of water column in the capillary tube will be:

8 cm

4 cm

10 cm

20 cm

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Solution

In the condition of weightlessness, water rises to the level of the available length. 

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