Part A A beam of unpolarized light with intensity 130 W/m2 is incident on a pair of ideal crossed (perpendicular) polarizers. You insert a third ideal polarizer between the two polarizers with its polarizing axis at 45° to the others. Determine the intensity of the emerging light before you insert the third polarizer. Express your answer with the appropriate units. W I= 65 m- Submit Previous Answers Request Answer X Incorrect; Try Again; 5 attempts remaining Part B Determine the intensity of the emerging light after you insert the third polarizer. Express your answer with the appropriate units. ? I2 = Value Units Submit Request Answer

Part A A beam of unpolarized light with intensity 130 W/m2 is incident on a pair of ideal crossed (perpendicular) polarizers. You insert a third ideal polarizer between the two polarizers with its polarizing axis at 45° to the others. Determine the intensity of the emerging light before you insert the third polarizer. Express your answer with the appropriate units. W I= 65 m- Submit Previous Answers Request Answer X Incorrect; Try Again; 5 attempts remaining Part B Determine the intensity of the emerging light after you insert the third polarizer. Express your answer with the appropriate units. ? I2 = Value Units Submit Request Answer

Principles of Physics: A Calculus-Based Text

5th Edition

ISBN:9781133104261

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter24: Electromagnetic Waves

Section: Chapter Questions

Problem 46P

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Three polarizing sheets are placed together such that the transmission axis of the second sheet is oriented at 25.0° to the axis of the first, whereas the transmission axis of the third sheet is oriented at 40.0° (in the same sense) to the axis of the first. What fraction of an intensity of an incident unpolarized beam is transmitted by the combination?
If you have completely polarized light of intensity 150 W/m2 , what will its intensity be after passing through a polarizing filter with its axis at an 89.0 angle to the light’s polarization direction?
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Check Your Understanding Although we did no specify the direction in Example 1.7, let’s say the polarizing filter was rotated clockwise by 71.6° to reduce the light intensity by 90.0%. What would be the intensity reduction if the polarizing filter were rotated counterclockwise by 71.6°’
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