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?