![cover image](https://wikiwandv2-19431.kxcdn.com/_next/image?url=https://upload.wikimedia.org/wikipedia/commons/thumb/9/9d/Image-Metal-reflectance.png/640px-Image-Metal-reflectance.png&w=640&q=50)
Reflectance
Capacity of an object to reflect light / From Wikipedia, the free encyclopedia
The reflectance of the surface of a material is its effectiveness in reflecting radiant energy. It is the fraction of incident electromagnetic power that is reflected at the boundary. Reflectance is a component of the response of the electronic structure of the material to the electromagnetic field of light, and is in general a function of the frequency, or wavelength, of the light, its polarization, and the angle of incidence. The dependence of reflectance on the wavelength is called a reflectance spectrum or spectral reflectance curve.
![Thumb image](http://upload.wikimedia.org/wikipedia/commons/thumb/9/9d/Image-Metal-reflectance.png/320px-Image-Metal-reflectance.png)