Question

Two liquids which do not react chemically are placed in a bent tube a shown in figure. The heights of the liquids above their surface of separation are –

• A. Directly proportional to their densities
• B. Inversely proportional to their densities
• C. Directly proportional to square of their densities
• D. Equal

Answer 1

Answer: (B)

Inversely proportional to their densities

Answer 2

The pressure at the interface must be same, calculated via

either tube. Since, both tube are open to the atmosphere, we must have

h₁r₁g = h₂r₂g

or h₁r₁ = h₂r₂

or hr = constant

or h µ $\frac{1}{\rho}$