Q.

A capillary is dipped in water vessel kept in a freely falling lift, then

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a

Water will rise to the height below that observed under normal condition

b

Water will rise to the height observed under normal condition

c

Water will rise to the maximum available height of the tube

d

Water will not rise into the tube

answer is B.

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Detailed Solution

As we know,
height in a capillary tube is given by

h=2Tcosθρg since in free fall g=0 h=,

hence 
water will rise to the maximum available height of the tube and then start free falling.

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