Physics: Principles with Applications (7th Edition)

Published by Pearson
ISBN 10: 0-32162-592-7
ISBN 13: 978-0-32162-592-2

Chapter 22 - Electromagnetic Waves - Misconceptual Questions - Page 640: 9

Answer

Choice C.

Work Step by Step

Equation 22-8 shows that the intensity is proportional to the product of the E and B amplitudes. Equation 22-2 shows that the field amplitudes are proportional to each other. If the intensity doubles, then the E and B fields each increase by the same factor, $\sqrt{2}$.
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