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

Question

Quizplus · Accepted Answer

The primaries in this scenario must be additive. This is because additive color mixing involves adding together different wavelengths of colored light to produce white, whereas subtractive color mixing involves removing wavelengths of light from a source (such as paint or ink) to produce a desired color. Therefore, in order to produce white light on a white surface, the primaries must be additive.

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