Question

When light ray travels from denser to rarer
medium, the relation between 'r' and 'i' is​

Answer 1

Explanation:

r is the angle of refraction

i is the angle of incidence

So, when light travels from rarer to denser medium, it bends toward the normal

This means, that, tha angle of refaction is less than the angle of incidence

See my diagram to understand it better

Here, MN is the normal