Under minimum deviation condition in a prism, if a ray is incident at an angle of `30^@`. The angle between the emergent ray and the second refracting surface of the prism is

Under minimum deviation condition in a prism, if a ray is incident at an angle 30^(@) , the angle between the emergent ray and the second refracting surface of the prism is

Under minimum deviation condition in a prism, if a ray is incident at an angle 30^(@) , the angle between the emergent ray and the second refracting surface of the prism is

The angle between the incident ray and the refracted ray of a prism is called angle of deviation.

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 ?