Question

when light travels from a rare to dense medium please give me answer fast it's very very urgent please​

Answer 1

Answer:

Now we'll look at what happens when light travels from a denser medium like glass into a rarer medium like air. When light travels from a denser medium to a rarer medium, it bends away from the normal, as illustrated to the left. This behavior follows from Snell's Law.

Answer 2

Answer:

when light travels from rare to dense medium the ray bends towards the normal.when light travels from dense to rare medium the ray bends away from normal.