In an experiment in color matching, an observer is shown two patches of light.One is called the test patch, and the other is called the comparison patch.The test patch is a single wavelength of an unchanging illumination or brightness.The comparison patch is composed of three primary colors, such as the red, green, and blue used in a television.The observer has control over the intensities of the three lights in the comparison patch.The observer should be able to ______.
A)control the colors so that they simulate real colors in the world
B)control the comparison patch so that it looks identical to the test patch in color
C)alter the comparison patch until it is a heterochromatic color
D)alter the comparison patch until it is a spectral color

Question

Quizplus · Accepted Answer

The goal of the experiment is for the observer to adjust the intensities of the three primary colors in the comparison patch so that it matches the color of the test patch. Therefore, the observer should be able to control the comparison patch so that it looks identical to the test patch in color. Choice A is incorrect because the goal is not to simulate real colors in the world, but rather to match a single wavelength. Choices C and D are incorrect because the goal is not to create heterochromatic or spectral colors, but rather to match a specific color.

In an Experiment in Color Matching, an Observer Is Shown