Question

1. Can white light be produced by mixing all the primary colors of pigment in equal proportions? Why or why not?

2. What behavior of light are responsible for the formation of mirages? Explain your answer.

Answer 1

Explanation:

(1) If all three primary colors of light are mixed in equal proportions, the result is neutral (gray or white). When the red and green lights mix, the result is yellow. When green and blue lights mix, the result is a cyan.

(2) Mirages happen when the ground is very hot and the air is cool. The hot ground warms a layer of air just above the ground. When the light moves through the cold air and into the layer of hot air it is refracted (bent). A layer of very warm air near the ground refracts the light from the sky nearly into a U-shaped bend.