Assume the helium-neon lasers commonly used in student physics laboratories have power outputs of 0.250 mW. (a) If such a laser beam is proje ted onto a circular spot 3.50 mm in diameter, what is its intensity (in watts per meter squared)? W/m² (b) Find the peak magnetic field strength (in teslas).

Assume the helium-neon lasers commonly used in student physics laboratories have power outputs of 0.250 mW. (a) If such a laser beam is proje ted onto a circular spot 3.50 mm in diameter, what is its intensity (in watts per meter squared)? W/m² (b) Find the peak magnetic field strength (in teslas).

University Physics Volume 2

18th Edition

ISBN:9781938168161

Author:OpenStax

Publisher:OpenStax

Chapter16: Electromagnetic Waves

Section: Chapter Questions

Problem 60P: Assume the helium-neon lasers commonly used in student physics laboratories have power outputs of...

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