Computer Science: An Overview: Global Edition (12th Edition)

Published by Pearson Higher Education
ISBN 10: 1292061162
ISBN 13: 978-1-29206-116-0

Chapter 10 - Computer Graphics - Chapter Review Problems - Page 489: 25

Answer

a. Above and toward the background of its true position

Work Step by Step

When a fish is swimming below the surface of still water and viewed from above, refraction occurs at the water-air interface. Refraction is the bending of light as it passes from one medium to another (in this case, from water to air). When light rays from the fish travel upward and exit the water, they bend away from the normal because air is less dense than water. As a result, the observer perceives the light as coming from a point higher and farther away than the fish’s actual location. The correct answer is a. Above and toward the background of its true position
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