Question

Find the angle of incidence for a light ray if it is continuous to move along the same path while passing through an air-glass interface

Answer 1

Answer:

We know that angle of incidence is the angle between the incident ray and the normal lying on the reflecting surface.

Angle of refraction is the measure of angle between the normal and the refracted ray.

Overhear the light is passing through a rectangular glass slab which means the real flight travels from air to glass and in this case the angle of incidence will be greater than the angle of refraction.

i) Angle of incidence is greater than angle of refraction.

Not only this but when we try to increase the emergent angle on the incident angle then the angle of emergence also increases.

ii)Angle of emergence increases.

There can be two conditions for which no refraction would take place:

i) When the Ray of light is falling perpendicular to the refracting surface that is along the normal.

ii)And the second condition is when the refractive index of both the media are equal.

Step-by-step explanation:

Answer 2

Answer:

angle of incidence is 90°

Step by Step explaination

If the light ray is perpendicular to the glass medium from air then that light ray don't experience any deviations when it is passing through the glass medium

hope this answer is helpful...