Optics is the scientific study of light. It is a branch of physics that covers the behavior and properties of light.

History is witness to how light has become an object of interest for humans due to its complicated nature. The study of optics dates back from the development of lenses in Ancient Egypt. It was succeeded by many other innovations, such as the theories of light and vision, the invention of the microscope, telescope, and the foundation of several other branches in relation to Optics.

Physical optics is focused on the nature, creation and properties of light. It is generally referred to as approximation, used also in electrical engineering and applied physics. In optics, it estimates interference, diffraction, and polarization.

Psychological optics, on the other hand, tackles on the role of light in vision. Visual observations are primary considerations as the power of the brain and the eye is being tested.
Reflection and refraction of light are both dealt with in Geometrical optics. Mirrors, lenses and optical fibers are deliberated here.

There are many other modern and practical uses of Optics. More and more studies are being undertaken to learn other uses of light. With Scientific Revolution underway, modern developments tend to become overflowing with theories strengthening more its backbone.

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