Question

Observe the given diagram and answer the following questions: 

1. What is refraction of light?
2. Name the emergent ray.
3. Which two angles are equal?

Answer 1

1. Light changes its direction transparent when going from one medium to another transparent medium. This is called the refraction of light.
2. Ray CD is an emergent ray.
3. ∠i = ∠e or ∠r = ∠i₁ are equal.