Question

Define the following terms: Refraction of light

Answer 1

1. Refraction of light: The phenomenon of bending of light when light passes from one transparent medium to another at an angle, is called refraction of the light.
   
2. Here PO is incident light and OQ is refracted light.
3. Refraction is caused because lights travel at different speeds in different mediums.
4. For example, when a pencil is submerged in water it appears to bend due to the phenomenon of refraction.