Chapter 28, Problem 32A

How could you use the spotlights at a play to make the yellow clothes of the performers suddenly change to black?

To determine

To explain: The procedure of spot lights, that make the yellow cloths of the performers to suddenly change in to the black.

Explanation of Solution

Introduction: 

Generally, colors refers to the perception of visible light of electromagnetic spectrum that perceived by the human eye.

Explanation: 

The pigments absorb the complimentary colors (complimentary means pairs of colors). As per the color wheel, the opposite colors on the wheel known as complimentary colors. In color wheel the opposite color of yellow is blue. The yellow color on the cloths absorbs the blue light which means there is no reflected light. So, the human eyes perceive the color as black. Therefore, the blue spotlight makes the yellow cloths suddenly in to the black.