Physics of Optics

Optics is a branch of physics that is concerned with behaviour and properties of light. It mostly cares about visible light, since it’s easiest to perceive and thus research and understand, but other electromagnetic waves are also involved- from x-rays through infrared and ultraviolet to radio and micro waves.

 science concerned with the genesis and propagation of light, the changes that it undergoes and produces, and other phenomena closely associated with it. There are two major branches of optics, physical and geometrical. Physical optics deals primarily with the nature and properties of light itself. Geometrical optics has to do with the principles that govern the image-forming properties of lenses, mirrors, and other devices that make use of light. It also includes optical data processing, which involves the manipulation of the information content of an image formed by coherent optical systems