A ray of light is incident at `60^(@)` on one face of a prism of angle `30^(@)` and the emergent ray makes `30^(@)` with the incident ray. The refractive index of the prism is

A ray of light is incident at 65^(@) on one face of a prism of angle of 30^(@) and the emergent ray makes 35^(@) with the incident ray. The refractive index of the prism is:

A ray of light is incident at 65^(@) on one face of a prism of angle of 30^(@) and the emergent ray makes 35^(@) with the incident ray. The refractive index of the prism is:

A ray of light is incident at an angle of 60^(@) on one face of a prism of angle 30^(@) . The ray emerging out of the prism makes an angle of 30^(@) with the incident ray. The emergent ray is

A ray of light is incident at an angle of 60^(@) on one face of a prism of angle 30^(@) . The ray emerging out of the prism makes an angle of 30^(@) with the incident ray. The emergent ray is

A ray of light is incident at an angle of 60^(@) on one face of a 30^(@) prism . The emergent ray from the prism makes an angle of 30^(@) with the incident ray. The angle of emergence and refractive index of the material of the prism are-

A ray of light is incident at an angle of 60^@ on one face of a prism which has an angle of 30^@ . The ray emerging out of the prism makes an angle of 30^@ with the incident ray. The refractive index of the material of the prism is

A ray of light is incident at 60^@ on one face of a prism which has angle 30^@ . The angle between the emergent ray and incident ray is 30^@ . The angle between the ray and the face from which it emerges is