Conceptual Physics (12th Edition)

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

Chapter 29 - Think and Discuss - Page 561: 67


You may find yourself unable to read the LCD (liquid crystal display).

Work Step by Step

This depends on the angle between the polarization axis of your sunglasses and that of the display. If the light coming from the LCD is linearly polarized, and the transmission axis of your glasses is perpendicular to the direction of polarization, you will see a dark display.
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