Question

A ray of light enters a rectangular glass slab submerged in water at an angle of incidence 55°. Does this ray undergo total internal reflection when it moves from water to glass? Justify your answer. (The critical angle for glass-water interface is 54°.)

Answer 1

The ray of light does not experience complete internal reflection while transitioning from a less dense medium (water) to a denser medium (glass). T.LR. should propagate from an optically denser medium to an optically rarer medium.