"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 ...
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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." - (en.wikipedia.org 01.12.2019)