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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 projected 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).         T   (c) Find the peak electric field strength (i

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 projected 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).         T   (c) Find the peak electric field strength (i

College Physics
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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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 projected 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).
        T
 
(c) Find the peak electric field strength (in volts per meter).
      V/m
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