Question

Label the parts 1 to 4 in the above diagram.
-3

Answer 1

Answer:

1. Incident ray
2. Angle of incidence
3. Angle of refraction
4. Refracted ray

Explanation:

1. An incident ray is a ray of light that is incident on a particular surface.
2. The angle made by the incident ray with the normal to the surface is called the angle of incidence.
3. The angle made by the refracted ray with the normal to the surface is called the angle of refraction.
4. The ray of light which bends from its original path when entering from one medium to another is called the refracted ray.