Color (Background)

False

A metamer is a psychophysical color contrast between two patches of light that have identical sets of wavelengths but are perceived as different colors due to their surroundings. (T/F)

True

Additive color mixing is the creation of a new color by a process that adds one set of wavelengths to another set of wavelengths. (T/F)

simulating a full range of colors on a smart phone screen

Additive color mixing is used in which of the following technologies?

white

An object that reflects all light of all wavelengths from its surface will be perceived as ______.

spectral reflectance

Blue objects absorb most wavelengths but reflect light at about 450 nm. This phenomenon relates to ______.

subtractive color mixing

Color mixing in which a new color is made by the removal of wavelengths from a light with a broad spectrum of wavelengths is known as ______.

Three

How many lights (of the correct type) are required to match any color that humans can see?

control the comparison patch so that it looks identical to the test patch in color

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 ______.

hue

In this color circle, what dimension of color is represented by the perimeter of the circle?

subtractive; additive

Mixing paints to create new colors is an example of _______ color mixing, while shining lights to create new colors is an example of _______ color mixing.

True

Spectral reflectance is the ratio of light reflected by an object at each wavelength. (T/F)

Yellow

Suppose you are the lighting director for a theater production. The current spotlight on the stage is too blue and you want to make it whiter. What colored spotlight would you shine on the same area to cancel out the blue?

visible spectrum

The band of wavelengths from 400 to 700 nm that people with normal vision can detect is known as the ______.

Additive color mixing is what happens when we mix lights of different colors, whereas subtractive color mixing occurs when we mix paints or other colored materials.

What is the difference between additive and subtractive color mixing?

additive; subtractive

When adding colors, blue and yellow create white through _______ color mixing and create green through _______ color mixing.

red/pink

Which of the following is a more saturated/less saturated pair of colors?

It helps animals find food and mates.

Which of the following is an argument from the textbook about the usefulness of color vision?

heterochromatic; monochromatic

White light, consisting of many wavelengths, is known as ______, whereas light consisting of one wavelength is known as ______.

Metamers

_______ are different mixtures of wavelengths that look identical.