If three primary colors of light are to shine on a white wall to produce a white spot, the primaries must be
A) multiplicative.
B) additive.
C) subtractive.
D) divisive.

Question

Quizplus · Accepted Answer

The primary colors of light (red, green, and blue) combine through additive mixing to produce white light when shone on a white wall. This is because each color adds wavelengths to the mix, eventually encompassing the full spectrum of visible light perceived as white by the human eye.

If Three Primary Colors of Light Are to Shine on a White