University Physics with Modern Physics (14th Edition)

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

Chapter 32 - Electromagnetic Waves - Problems - Exercises - Page 1074: 32.22

Answer

a. $f=8.47\times10^{8}Hz$. b.$ B_{max}=1.80\times10^{-10}T $. c. $ I=3.87\times10^{-6}W/m^2 $.

Work Step by Step

a. $$f=\frac{c}{\lambda}=\frac{3.00\times10^{8}m/s}{35.4\times10^{-2}m}=8.47\times10^{8}Hz$$ b. $$ B_{max}=\frac{E_{max}}{c}=1.80\times10^{-10}T $$ c. $$ I=S_{av}=\frac{E_{max} B_{max}}{2 \mu_0}=3.87\times10^{-6}W/m^2 $$
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