Optical Reflection: Difference Between a Mirror and a White Surface?

AI Thread Summary
A white surface reflects all wavelengths of visible light diffusely, scattering light in many directions, while a mirror reflects light specularly, maintaining the image and direction of the incoming light. This difference in reflection types leads to distinct optical properties, with mirrors providing clear images and white surfaces appearing uniform and colorless. At the condensed matter physics level, mirrors typically have a smooth, metallic coating that enhances specular reflection, whereas white surfaces are often rough and composed of materials that scatter light. Mirrors do not have a color in the traditional sense; they reflect the colors of the surrounding environment. Understanding these distinctions is crucial for applications in optics and materials science.
Islam Hassan
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If a surface is perceived as being white because it reflects all wavelenghts of visible electromagnetic radiation, how does this differ from a mirror surface which also reflects all impinging light?

How is a mirror different from a white surface i) optically and ii) at the level of condensed matter physics?

Can a mirror be said to have a colour? What would this be, if any?


IH
 
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