The orange light of the spectrum and the orange produced by mixing red and yellow spectral light
A) can be distinguished from one another by brightness cues.
B) are made up of identical kinds of light waves.
C) can be distinguished because spectral orange is less muddy looking.
D) are indistinguishable from each other by the human color senses.

Question

Quizplus · Accepted Answer

Spectral orange and mixed orange are indistinguishable because they stimulate the same cone cells in the retina.

The Orange Light of the Spectrum and the Orange Produced