Physics - Geometrical Optics Question with Solution | TestHub

A transparent glass cube of length $24\mathrm{cm}$ has a small air bubble trapped inside. When seen normally through one surface from air outside, its apparent distance is $10\mathrm{cm}$ from the surface. When seen normally from opposite surface, its apparent distance is $6\mathrm{cm}$. The distance of the air bubble from first surface is