Question

Blue light and yellow light combine to produce white light because

a. they absorb each other s wavelengths.
b. blue, yellow, and white are primary colors.
c. they are complementary colors of light.
d. they are both primary colors of light.

Answer 1

Blue and yellow light combine to produce white light because they are complementary colors of lights.
When you say complementary colors, it refers to a combination of 2 colors that when mixed, they fade out their color. That's why when blue light and yellow light are combined they produces white light.

Answer 2

Answer: The correct answer is c.

Explanation: According the RGB color model, the light of the two complementary colors will combine to form a white light. This happens because the complementary colors combine at full intensity.

Complementary colors according to RBG color model is:

1. Red - Cyan
2. Green - Magenta
3. Blue - Yellow

From the above information, we conclude that blue light and yellow light are complementary colors of light and hence, the combination of two will produce white light.