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Picture Above – Newton introduced a converging lens after the prism which mixed the colors to achieve white light again.
The major discovery was that the color of everything in Nature depends on the type of light it sends to the eye. This also depends on the individual colors of the light that the surface of the object reflects, absorbs or transmits and the nature of the light falling on the object.
The balance of spectral colors that produce specific hues is complex and can be stated in the form of tables of numbers or displayed as a graph, stating the proportions of light each spectral color reflects.
Generalizing, if a surface looks strongly colored when viewed in white light it is reflecting certain colors and absorbing others. We view a red Ferrari on the street; it has absorbed all forms of light except the red, which it is reflecting back to us to tell us that it is in fact red.
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