Why do black surfaces absorb majority of the Infrared radiation incident on it, why not white surfaces?
In: Physics
Being black means that a surface is good at absorbing visible light. Thus the light doesn’t reflect off into your eye.
Many pigments that are good at absorbing visible light are also good at absorbing infra-red light, after all the two are next to each other on the electromagnetic spectrum.
This isn’t always true though, I have used pigments that are black, but almost completely transparent to IR light.
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