How many monochromatic comparison lights do people with normal color vision require to match an arbitrary monochromatic test light?
A) one
B) two
C) three
D) four

Question

Quizplus · Accepted Answer

People with normal color vision require three monochromatic comparison lights to match any arbitrary monochromatic test light due to the trichromatic nature of human vision, which is based on three types of cone cells sensitive to different wavelengths.

How Many Monochromatic Comparison Lights Do People with Normal Color