Assume the helium-neon lasers commonly used in student physics laboratories have power outputs of 0.55 mW. a. If such a laser beam is projected onto a circular spot 2.8 mm in diameter, what is its intensity in W/m2? b. Find the peak magnetic field strength in T. c. Find the peak electric field strength in V/m.

Assume the helium-neon lasers commonly used in student physics laboratories have power outputs of 0.55 mW. a. If such a laser beam is projected onto a circular spot 2.8 mm in diameter, what is its intensity in W/m2? b. Find the peak magnetic field strength in T. c. Find the peak electric field strength in V/m.

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter34: Maxwell’s Equations And Electromagnetic Waves

Section: Chapter Questions

Problem 50PQ

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