Q.

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

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a

20 cm

b

liquid over flows

c

10 cm            

d

8 cm

answer is A.

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Detailed Solution

Water fills the tube entirely in gravity less condition i.e., 20cm 

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