define desert

Some common phenomena and applications related to refraction are as follows:Lens: Refraction is at the core of the functioning of a lens. A lens uses refraction for image formation which is used for several purposes such as magnification. Our eye is also a lens where what we see is projected on our retina. Here also refraction is used to form the image on the retina. Uses of a lens in our daily life are galore like magnifying glasses, eye glasses, contact lenses.Prism: A prism uses refraction to form a spectrum of colors from an incident beam of light.A prism can be used to break light up into its constituent spectral colours (the colors of the rainbow). Prisms can also be used to reflect light, or to split light into components with different polarizations.Mirage: A mirage is a naturally occurring optical phenomenon in which light rays are bent to produce a displaced image of distant objects or the sky. Some common examples are water bodies in a desert and wet roads on a hot sunny day.