Review Refraction Study the image • What do you mean by refraction? • What is the angle of refraction when the angle of incidence is zero? • How does optical density affect light rays as they enter/leave a medium? • Can angle of refraction be greater than the angle of incidence? • Is the refractive index of water w.r.t. glass less or more than 1? • Locate lateral displacement in the image on the previous slide.What are the factors on which the lateral displacement produced by a glass slab depends?
