Question

How does the refracted ray behave when it passes from:
a rarer medium to a denser medium​

Answer 1

Answer:

when the refracted ray passes from rarer medium to denser medium then it moves close to the normal

Answer 2

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.