Q.

The limbs of a glass U-tube are lowered into vessels A and B , A containing water. Some air is pumped out through the top of the tube C. The liquids in the left hand limb A and the right hand limb B rise to heights of 10 cm and 12 cm respectively. The density of liquid B is

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a

0.75g/cm3

b

0.83g/cm3

c

1.2g/cm3

d

0.25g/cm3

answer is B.

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Detailed Solution

h1ρ1g1=h2ρ2g2 10×1=12×ρ2 ρ2=56=0.83g/cc
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