Physics Technology Update (4th Edition)

Published by Pearson
ISBN 10: 0-32190-308-0
ISBN 13: 978-0-32190-308-2

Chapter 25 - Electromagnetic Waves - Conceptual Questions - Page 899: 5

Answer

Due to the right angle between the polarized light and the sunglasses direction.

Work Step by Step

We know that if the direction of polarized light and that of the sunglasses is at a right angle, then no light will pass through the sunglasses and hence the display will be black.
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