A U-tube having a horizontal arm of length 20 cm, has a uniform cross-sectional area 1 cm 2 . It is filled with water of volume 60 cc. The volume of a liquid of density 4 g cc -1 required to be poured in one arm of the U-tube so that no water is left in the horizontal arm of the tube is (take g = 9.8ms -2 )
Text Solution
Verified by ExpertsThe correct answer is:
D
h 
g = 60 x 1 x g
h = 15 cm
(g = 980 cm see -2 )
Volume = (15 + 20) x 1 = 35 cc
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