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.

Angle of a prism is 30^(@) and its refractive index is sqrt(2) and one of the surface is silvered. At what angle of incidence, a ray should be incident on one surface so that after reflection from the silvered surface, it retraces its path ?

Angle of a prism is 30^(@) and its refractive index is sqrt(2) and one of the surface is silvered At what angle of incidence a ray should be incident on one surface so that after reflection from the silvered surface it retraces its path

The refractive index of the material of a prism is sqrt(2) and the angle of the prism is 30^(@) . One of the two refracting surfaces of the prism is made a mirror inwards, by silver coating. A beam of monochromatic light entering the prism from the other face will retrace its path (after reflection from the silvered surface) if its angle of incidence on the prism is

A prism of refractive index sqrt(3/2) and refracting angle is 45^(@) is placed in air. One of the two refracting surface of the prism is silvered and a ray of monochromatic light enters the prism from the other face at an angle theta . If the ray retraces its path, then what is the value of theta (in degree)?

A glass prism has refractive index sqrt(2) and refracting angle 30^(@) . One of the refracting surface of the prism is silvered. A beam of monchromatic light will retrace it path it its angle of incidence on the unsilvered refracting surface of the prism is