College Physics
2nd Edition
ISBN: 9780134601823
Author: ETKINA, Eugenia, Planinšič, G. (gorazd), Van Heuvelen, Alan
Publisher: Pearson,
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Chapter 25, Problem 38P
25.6 Polarization and light reflection
* Unpolarized light passes through three polarizers The second makes an angle of
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The drawing shows light incident on a polarizer whose transmission axis is parallel to the z axis. The
polarizer is rotated clockwise through an angle a. The average intensity of the incident light is 9 W/m2.
Determine the average intensity of the transmitted light for each of the six cases.
Incident
light
Transmitted
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Intensity of Transmitted Light
Incident Light
a = 0°
a = 35°
4.5
W/m^2
4.5
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W/m^2 ▼
i
W/m^2
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Polarized parallel to y
W/m^2 ▼
i
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An unpolarized beam of light (intensity lo) is moving in the x-direction. The light passes through three ideal polarizers
whose transmission axes are (in order) at angles 0.0°, 47.0°, and 20.0° counterclockwise from the y-axis in the yz-plane.
If the polarizer in the middle is removed, what is the intensity and polarization of the light transmitted by the last polarizer?
Chapter 25 Solutions
College Physics
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