Light rays from a source are incident on a glass prism of index of refraction `mu` and angle of prism `alpha` At near normal incidence, the angle of deviation of the emerging rays is

A ray of light is incident normally on one of the faces of a prism of angle 30^@ and refractive index sqrt2 . The angle of deviation of the ray is

A ray of light is incident on a prism of refractive index mu and angle A at the angle of incidence i_(1) and emerges at the angle i_(2) . If the ray is incident on the prism at the angle i_(2) , calculate the deviation of the ray.

A ray of light is incident normally on one of the faces of a prism of angle 30^@ and refractive index sqrt 2 . The angle of deviation of the ray is

A ray of light is incident on a glass sphere and it makes an angle alpha with the normal, and then it is refracted at an angle beta . Calculate the angle of deviation between the incident and emergent ray.

In an isosceles prism of prism angle 45^(@) , it is found that when the angle of incidence is same as the prism angle, the emergent ray grazes the emergent surface. Find the refractive index of the material of the prism.For what angle of incidence the angle of deviation will be minimum ?

A ray of light is incident on the glass prism at an angle of 40^@ .Find the angle of emergence,if the angle of prism is 60^@ and refractive index.