A `U`-tube of uniform cross section is partially filled with a liquid I. Another liquid II which does not mix with liquid I is poured into one side. It is found that the liquid levels of the two sides of the tube are the same, while the level of liquid I has risen by `2 cm`. If the specific gravity of liquid I is `1.1`, the specific gravity of liquid II must be

Options

A. 1.12
B. 1.1
C. 1.05
D. `1.0`

Answer

B

Explanation

The upper level of liquid is the same in both the limbs. Pressure in limbs I at B = Pressure of limb II at A.
`hrho_(1)g=hrho_(2)g`
`rArrrho_(1)=rho_(2)`