When light passes through a rectangular glass slab, refraction occurs at
Question
When light passes through a rectangular glass slab, refraction occurs at
only the first (air-glass) surface
both the air-glass and glass-air interfaces
no surfaces; light passes straight through
only the exact centre of the slab
Answer
both the air-glass and glass-air interfaces
Detailed Explanation
The chapter explains refraction takes place at both parallel surfaces of the slab: the air-glass interface (entry) and the glass-air interface (exit). — Examisthan.com