University Physics with Modern Physics (14th Edition)

Published by Pearson
ISBN 10: 0321973615
ISBN 13: 978-0-32197-361-0

Chapter 33 - The Nature and Propagation of Light - Problems - Discussion Questions - Page 1104: Q33.11

Answer

Use a second pair of sunglasses.

Work Step by Step

Polarizing filters with crossed axes will transmit no light, as seen in Figure 33.25 and predicted by Malus's Law. Hold 2 pairs of sunglasses, one behind the other, and rotate one pair by 90 degrees. If the transmitted light intensity is unchanged, the lenses are not polarized.
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