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.

University Physics Volume 2

18th Edition

ISBN:9781938168161

Author:OpenStax

Publisher:OpenStax

Chapter16: Electromagnetic Waves

Section: Chapter Questions

Problem 93AP: On its highest power setting, a microwave oven increases the temperature of 0.400 kg of spaghetti by...

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