A sheet of red paper will look black when illuminated with
A)red light.
B)yellow light.
C)magenta light.
D)cyan light.
E)none of these

Question

Quizplus · Accepted Answer

When a red paper is illuminated with cyan light, which is the complementary color of red, the red paper will appear black as all the wavelengths of light that are necessary to produce red are cancelled out by their complementary color.

A Sheet of Red Paper Will Look Black When Illuminated