The sides of an isosceles right prism are coated with a reflecting coating. A ray of light falls on the hypotenuse at an arbitrary angle i. For what value of i the ray leaving the prism is parallel to the incident ray ?

Light of wavelength 5000 Å falls on a reflecting surface. For what angle of incidence is the reflected ray normal to the incident ray?

A ray of light PQ is incident normally on the hypotenuse of a right angled prism ABC as shown in the diagram given below: What is the value of the angle of deviation of the ray ?

A ray of light PQ is incident normally on the hypotenuse of a right angled prism ABC as shown in the diagram. Name an instrument where this action of the prism is used.

A ray of light, incident on an equilateral glass prism (μ_g =√3) moves parallel to the base line of the prism inside it. find the angle of incidence for this ray.

A total reflecting right angled isosceles prism can be used to deviate a ray of light through :

A prism has refracting angle 30^(@) and mu = 2 . One of the mat surface of the prism is polished to make it reflecting. Find the incidence angle of a light ray on other mat surface of prism so that after reflection the ray will retrace the path of incident ray.

A ray of light falls normally on one side other than the hypotenuse of a right angled isosceles prism of refractive index 1.5. From which side will the ray emerge from the prism? Find the deviation of the incident ray.

The two perpendicular faces of a right angled isosceles prism are silvered. Prove that a light ray incident on the third face (hypotenuse face) will emerge from the prism parallel to the initial direction.