![](http://www.alamy.com/thumbs/6/F94FCD0A-0BFD-48D9-AFC7-EE1F3AF5FCCD/2BE00B9.jpg)
Color Filters and Subtractive Process
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Photo credit: © Science History Images / Alamy / Afripics
License: Licensed
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Keywords: color, demonstration, density, experiment, filter, filters, gels, light, mixing, optics, physics, process, purple, red, science, scientific, spectrum, subtraction, subtractive, translucent, transparent, visible, visual, yellow