Ray Optics and ...

Carbon disulfide (n = 1.63) is poured into a container made of crown glass (n = 1.52). What is the critical angle for internal reflection of a ray in the liquid when it is incident on the liquid-to-glass surface?​

What is the relation between critical angle and refractive index?

Critical angle is

Which of the following phenomena takes place inside an optical fiber ?

Light is confined within the core of a simple optical fiber by:

The critical angle for the material of a prism is 45° and its refracting angle is 30°. A monochromatic ray goes out perpendicular to the surface of emergence from the prism. What is the angle of incidence on the prism?

Total internal reflection occurs when

Mirage is caused due to

We have a right angled isosceles prism, Its refractive index is 1.5. If we incident a ray normally on one of the two perpendicular surfaces, which of the following phenomenon will take place?​

Total internal reflecting mirrors are preferred over plane mirrors because