Explanation

Mirage is an example of the refraction of light and the total internal reflection of light. Mirage is an example of refraction and total internal reflection of light. It is a naturally occurring optical in which images of distant objects or sky appear to be present at locations where they are not. It usually appears in regions that are too hot or too cold. The air in these regions is warmer or cooler near the surface of Earth and gets gradually cooler/warmer with an increase in the height from the surface. This difference in the temperature corresponds to a difference in the refractive index of air at different heights. These layers of different refractive indices cause the light to undergo refraction and total internal reflection as well.