Question

Why does the ray of light bends towards normal when it enters into glass slab from air and move away from the normal,whencome outof the glass slab in air

Answer 1

Answer:

When light rays travel from air into glass or from air into water, it bends towards normal. This is because the speed of light rays decrease while travelling from air into glass or water. Case 2: When light rays travel from optically denser medium to rarer medium then they bend away from the normal.