Question

Angle of prism is 30 incident ray is 60 on one phase deviates 30 ,what is angle of emergence

Answer 1

Step-by-step explanation:

ncidence angle on one face of a prism , i = 60°

angle of prism , A = 30°

emergent rays that makes an angle 30° with incident ray.

we know, deviation angle ,  = angle between incident ray and emergent ray = 30°

using formula,

so, 30° = 60° + e - 30°

or, e = 0°

hence , angle made by emergent ray with normal to the face of plane is 0°.

hence, angle made by the emergent ray with second face of prism will be 90° .