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A 15.8-mW laser puts out a narrow beam 2.40 mm indiameter. What are the rms values of E and B in the beam?

University Physics Volume 2

18th Edition

ISBN:9781938168161

Author:OpenStax

Publisher:OpenStax

Chapter16: Electromagnetic Waves

Section: Chapter Questions

Problem 56P: A small helium-neon laser has a power output of 2.5 mW What is the electromagnetic energy in a 1.0-m...

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A 15.8-mW laser puts out a narrow beam 2.40 mm in
diameter. What are the rms values of E and B in the beam?

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