A light ray does not bend at the boundary in passing from one medium to the other medium if the angle of incidence is:

A light ray does not bend at the boundary in passing from one medium to the other medium if the angle of incidence is:

Class 10 | ICSE | Physics | Refraction of Light at Plane Surfaces | Selina

A light ray does not bend at the boundary in passing from one medium to the other medium if the angle of incidence is:

a. 0°

b. 45°

c. 60°

d. 90°

Solution:

The correct option is (a) – 0 degrees.

The angle of incidence is the angle formed by a light ray and a surface normal. If the angle of incidence is 0 and the object is a mirror, the ray strikes the surface square on and is reflected straight back. If the object is glass, water, or another transparent medium, it penetrates without bending or refracting the rays.
As a result, if the angle of incidence is 0, a light ray does not bend at the boundary when travelling from one medium to another.

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