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.

The refractive index of the amterial of a prism is sqrt2 and its refracting angle is 30^@ .One of the refracting surface of the prism is made a mirror inwards.A beam of monochromatic light entering the prism from the other face will retrace its path after reflecting from the mirrored surface,if its angle of incidence on the prison is

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 ?

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