Is reflection always necessary for objects to be coloured? When things glow and emit light due to excitation of electrons, is it just the same as stars produce light?
In: Physics
There are two ways things can be colored. It can be from emitted light which is caused by that object actually emitting light of a certain wavelength. It can also be from reflected light where the object absorbs some wavelengths that hit it and reflects back other wavelengths, this is how all non-glowing objects get their color.
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