Question

Three immiscible liquids of densities d₁ > d₂ > d₃ and refractive indices μ₁ > μ₂ > μ₃ are put in a beaker. The height of each liquid column is h/3 . A dot is made at the bottom of the beaker. For near normal vision, find the apparent depth of the dot.

Answer 1

Let the apparent depth be O₁ for the object seen from μ₂ then