An electromagnetic wave traveling in free space has an electric field given by: E - 100 V/m (V5j- 2k ) cos[9 x 1015t+10 (2xj + V5k)| Calculate the corresponding irradiance (c= 3 x 10" m/s; Ho = 1.257 x 10-6 S.I unit; e, = 8.854 x 10-12 S.I unit).

An electromagnetic wave traveling in free space has an electric field given by: E - 100 V/m (V5j- 2k ) cos[9 x 1015t+10 (2xj + V5k)| Calculate the corresponding irradiance (c= 3 x 10" m/s; Ho = 1.257 x 10-6 S.I unit; e, = 8.854 x 10-12 S.I unit).

Stars and Galaxies

9th Edition

ISBN:9781305120785

Author:Michael A. Seeds, Dana Backman

Publisher:Michael A. Seeds, Dana Backman

Chapter7: Atoms And Spectra

Section: Chapter Questions

Problem 2DQ

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Question

alll O
5:03
E April 16, 2021
5:01 PM
An electromagnetic wave traveling in free space
has an electric field given by:
Ē = 100 V/m (v5j – 2k ) cos[9 × 1015t + 10°(2xj + v5k)|
Calculate the corresponding irradiance (c= 3x
10" m/s;µo = 1.257 × 10-6 S.I unit; €, = 8.854 × 10-12 S.I unit).
O 119.5 W/m^2
172.1 W/m^2
109.4 W/m^2
234.3 W/m^2
224.1 W/m^2
162.0 W/m^2
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