Question

A diver shines a flash light upward towards the water surface. Describe what happens when thflash light beam strikes the water's surface with the angles i) 20°) 40 m) 60.7. For a convex lens

Answer 1

As light pass through two media, the light will bend depending on the index of refraction of the medium. This relationship the angles of incidence and refraction and the indices of refraction of the two media is described by the Snell's Law. It is written as: