Is Black a color or just the absence of others colors/light . What actually constituents colors? How do we define if something is a color or not?
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1Related: https://physics.stackexchange.com/q/19690 ; https://physics.stackexchange.com/q/24263 – Marcel Jun 23 '22 at 13:06
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2Does this answer your question? What are colors? – BioPhysicist Jun 23 '22 at 13:13
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Color is subjective term, usually color maps to some light frequency range. But also color depends on sensitivity of human photoreceptor cells. Bear in mind that some people do not see colors correctly at all {see Color blindness} as well as some animals only see in a grayscale (shade of darkness). – Agnius Vasiliauskas Jun 23 '22 at 13:32
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1Depends who you ask. A printer or a painter would tell you that black is a color. A physicist would say, "no." – Solomon Slow Jun 23 '22 at 13:40
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What is Gray, from a physics POV? – mmesser314 Jun 23 '22 at 14:30