Question

what happens when light entres from (a) denser medium to rarer medium (b) rarer medium to denser medium

Answer 1

Answer:

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. As you saw before, the larger angle must be in the medium having the lower index of refraction. On the previous pages, that was medium 1, but here it is medium 2.

Explanation:

hope it's helpful to you

Answer 2

Answer:

(a) when light enters from denser medium to rarer medium the light bends away from the normal

(b) when light enters from rarer medium to denser medium the light comes towards the normal