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a. A laser has a power output rated 450 mW. If this laser were projected onto a circular spot with a diameter of 400 µm, what is its intensity? Find the peak magnetic and electric field strengths of such a laser.

a. A laser has a power output rated 450 mW. If this laser were projected onto a circular spot with a diameter of 400 µm, what is its intensity? Find the peak magnetic and electric field strengths of such a laser.

Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
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Electromagnetic Waves. a. A laser has a power output rated 450 mW. If this laser were projected onto a circular spot with a diameter of 400 µm, what is its intensity? Find the peak magnetic and electric field strengths of such a laser. b. Verify the numerical relationship between c, the speed of light, and µo and eo, the permeability and permittivity of the vacuum. Include a verification of the units, using dimensional analysis.
Transcribed Image Text:Electromagnetic Waves. a. A laser has a power output rated 450 mW. If this laser were projected onto a circular spot with a diameter of 400 µm, what is its intensity? Find the peak magnetic and electric field strengths of such a laser. b. Verify the numerical relationship between c, the speed of light, and µo and eo, the permeability and permittivity of the vacuum. Include a verification of the units, using dimensional analysis.
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