Conceptual Physics (12th Edition)

Published by Addison-Wesley
ISBN 10: 0321909100
ISBN 13: 978-0-32190-910-7

Chapter 27 - Think and Discuss: 79


In the ghost image of the flag, the blue star field appears yellow, the red stripes appear cyan, and the white stars and stripes appear to be black.

Work Step by Step

You see a ghost-like flag image on the wall, with complementary colors in each area. See the textbook's Think and Do #31 for an explanation of how the cones in your retina become fatigued.
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