Question

Calculate the critical angle for glass-air interface of a ray

Answer 1

Answer:

· A ray of light, incident on a plane glass surface, is deviated through when the angle of incidence is. The angle of refraction is. The refractive index of glass, When the ray of light undergoes total internal reflection it goes from glass to air and the angle of refraction is.

Answer 2

Explanation:

The measure of incident angle at which the ray does not refract when traveling from a denser medium to a rarer medium is named as the critical angle. At this value of the incident angle, the whole ray will reflect from the interface of two mediums.