1. Which set of colors are the primary colors when mixing light? a. red, yellow, and blue b. red, blue, and green . blue, green, and yellow d. red, green, and yellow 2. Which of the following terms...

1. Which set of colors are the primary colors when mixing light? a. red, yellow, and blue b. red, blue, and green . blue, green, and yellow d. red, green, and yellow

2. Which of the following terms refers to the psychological effect of the length of light waves? a. color b. brightness . pitch d. amplitude