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What colour is produced when red light and green light are mixed at equal intensity?

Answer and explanation

Correct answer: Yellow

The governing concept is additive colour mixing, used for light rather than pigments. The primary light colours are red, green and blue. When red and green beams have equal intensity, their wavelengths stimulate the eye together and are perceived as yellow. Blue would require blue light, cyan requires green plus blue, and magenta requires red plus blue; therefore option A is correct.

Related tags

Additive Colour MixingRgbRed And Green LightColour MixingColour TheoryArt EducationClass 9 Mcq

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