Question

A ray of light travelling in a rarer medium incident on the interface
separating it from a denser medium at angle i with the normal to the point of
incidence. Will the angle of refraction r be equal to, less than or greater than
angle of incidence i? Why?

Answer 1

Answer:

Angle of incidence is equal to angle of reflection not refraction.

Light not only bounces off surface it goes through some of them often slowing down and changing direction in the process called refraction. It occurs at the point where light travels from one medium to another of different density. Refraction produces mirages and rainbows.

When a ray of light (i.e., the incident ray) goes from rarer to denser medium, the ray (refracted ray) bends towards the normal in the denser medium.

Answer 2

Answer: Angle of incidence is equal to angle of reflection not refraction. ... When a ray of light (i.e., the incident ray) goes from rarer to denser medium, the ray (refracted ray) bends towards the normal in the denser medium.