mirror

A mirror is an object that reflects light in such a way that, for incident light in some range of wavelengths; the reflected light preserves many or most of the detailed physical characteristics of the original light, called specular reflection. This is different from other light-reflecting objects that do not preserve much of the original wave signal other than color and diffuse reflected light, such as flat-white paint.
The most familiar type of mirror is the plane mirror, which has a flat surface. Curved mirrors are also used, to produce magnified or diminished images or focus light or simply distort the reflected image.
Mirrors are commonly used for personal grooming, viewing oneself (where they are also called looking-glasses), viewing the area behind and on the sides on motor vehicles while driving, for decoration, and architecture. They are often used by technicians, mechanics and dentists for viewing around and behind obstructions. Mirrors are also used in scientific apparatus such as telescopes and lasers, cameras, and industrial machinery. Most mirrors are designed for visible light; however, mirrors designed for other wavelengths of electromagnetic radiation are also used.

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