All of the following are examples of primary colours, EXCEPT:
Correct Answer: None of the above
Description: The sensation of white, any spectral color, and even the extraspectral color, purple, can be produced by mixing various propoions of red light (wavelength 723-647 nm), green light (575-492 nm), and blue light (492-450 nm). which are therefore called the primary colors. Ref: Ganong's Review of Medical Physiology 23rd edition, Chapter 12.
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Ophthalmology
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