Explain why two prisms placed next to each other such that their adjacent faces are parallel, behave like a glass slab. Share with your friends Share 0 Sanjay Singh answered this Dear student if both the faces are parallel than after refraction from both the surfaces the ray will emerge parallel to its initial direction so divergence produced by a parallel faced slab is zero.so it does not act like a prism.Regards 2 View Full Answer
