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A 45-mW unpolarized light beam passes through a horizontally polarized axis, call it stage A. It then passes through two polarizers. The axis of the first polarizer is oriented at 25° from the horizontal, call it stage B, and that of the second is oriented at 65° from the horizontal, call it stage C. (a) What is the power of the transmitted beam (at stage C)? (b) If at stage C this beam is incident on an area of 1.5 cm², what are the peak intensities of the electric and magnetic fields?

A 45-mW unpolarized light beam passes through a horizontally polarized axis, call it stage A. It then passes through two polarizers. The axis of the first polarizer is oriented at 25° from the horizontal, call it stage B, and that of the second is oriented at 65° from the horizontal, call it stage C. (a) What is the power of the transmitted beam (at stage C)? (b) If at stage C this beam is incident on an area of 1.5 cm², what are the peak intensities of the electric and magnetic fields?

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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A 45-mW unpolarized light beam passes through a horizontally polarized axis, call it stage A. It then passes through two polarizers. The axis of the first polarizer is oriented at 25° from the horizontal, call it stage B, and that of the second is oriented at 65° from the horizontal, call it stage C. (a) What is the power of the transmitted beam (at stage C)? (b) If at stage C this beam is incident on an area of 1.5 cm2, what are the peak intensities of the electric and magnetic fields?
Transcribed Image Text:A 45-mW unpolarized light beam passes through a horizontally polarized axis, call it stage A. It then passes through two polarizers. The axis of the first polarizer is oriented at 25° from the horizontal, call it stage B, and that of the second is oriented at 65° from the horizontal, call it stage C. (a) What is the power of the transmitted beam (at stage C)? (b) If at stage C this beam is incident on an area of 1.5 cm2, what are the peak intensities of the electric and magnetic fields?
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