Question

How does the angle of deviation produced by a prism change with increase in the angle of incidence draw a curve?

Answer 1

Answer:

when rays of light are incident on a prism, they are refracted twice ,while travelling from air to glass and then from glass to air .even when the incident ray are directed away from the base of the prism,the emergent rays bend towards the base of the prism ,as the prism is triangular .thus ,the rays are deviated as they pass through the prism.