A glass slab of thickness `3cm` and refractive index `3//2` is placed on ink mark on a piece of
Channel: Doubtnut
Date: 2020-01-19

A glass slab of thickness `3cm` and refractive index `3//2` is placed on ink mark on a piece of paper. For a person looking at the mark at a distance `5.0 cm` above it, the distance of the mark will appear to be