Question

what is the eating thing that is first green in colour and then becomes red​

Answer 1

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Hurvich and Jameson reasoned that when red and green a mixed together the produce yellow, not reddish green. Further when yellow and blue are mixed together they produce white and not yellowish blue. ... So at the shortest wavelengths the observer would add a certain amount of green to cancel out the redness.

Answer 2

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