One of the refracting surfaces of a prism of angle `30^(@)` is silvered. A ray of light incident at angle of `60^(@)` retraces its path. The refractive index of the material of prism is

One of the refracting surfaces of a prism of angle of 30^(@) is silvered. A ray of light incident at an angle of 60^(@) retraces its path. The refractive index of the material of prism is

A ray of light is incident normally on one of the refracting surfaces of prism of refracting angle 60^@ . The emergent ray grazes the other refracting surface. The refractive index of the material of the prism is

A monochromatic ray of light is incident normally on one of the refracting surfaces of a prism . The emergent ray grazes the second refracting surface . What is the angle of the prism if the refractive index of the material of the prism is 1.6 ?

A ray of light is incident normally on one of the refracting surfaces of a prism of refracting angle A,. The emergent ray grazes the other refracting surface. Find the refractive index of the material ofprism.

A prism ABC of angle 30^(@) has its face AC silvered. A ray of light incident at an angle of 45^(@) at the face AB retraces its path after refraction at face AB and reflection at face AC . The refractive index of the material of the prism is

For a ray of light refracted through a prism of angle 60^(@) , the angle of incidence is equal to the angle of emergence, each equal to 45^(@) . Find the refractive index of the material of the prism.

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

A ray of light is incident at an angle of 60^(@) on one face of a prism which has refracting angle of 30^(@) . The ray emerging out of the prism makes an angle of 30^(@) with the incident ray. If the refractive index of the material of the prism is mu=sqrt(a) , find the value of a .