Question

White light is made to fall on one face of a glass prism. Draw a ray diagram to show the nature of the emergent beam.​

Answer 1

Answer:

when the ray of light (BC) travelling in the glass prism comes out into air (at point C), refraction takes place again .so, the ray BC is going from glass (denser) into air (rare) .hence,it bends away form the normal (MC) and goes along the direction CD in the form of emergent ray. so, here CD is called emergent ray

Answer 2

Answer:

Here is the diagram

Hope it helps.