Irradiances of polarized and unpolarized beams

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Homework Help Overview

The problem involves a beam of light that consists of both unpolarized and linearly polarized waves, analyzed through a polarizer. The task is to determine the ratio of the irradiances of the polarized and unpolarized components based on the variation of transmitted irradiance as the polarizer's transmission axis is rotated.

Discussion Character

  • Exploratory, Assumption checking, Problem interpretation

Approaches and Questions Raised

  • Participants discuss the ratio of the irradiances, with some asserting a value of 1 and seeking verification. Others question how this ratio is derived and express confusion regarding the reasoning behind it.

Discussion Status

The discussion is ongoing, with multiple participants attempting to clarify their reasoning and seeking validation of their answers. Some guidance has been offered regarding the steps to take, but there is no clear consensus on the correct ratio at this stage.

Contextual Notes

Participants are encouraged to show their work and explain their thought processes, indicating a collaborative effort to understand the problem better. There may be constraints related to homework rules that affect how participants can engage with the problem.

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Homework Statement


A beam of light is composed of a mixture of unpolarized and linearly polarized waves. The beam is analyzed with a polarizer. As the transmission axis is rotated, the transmitted irradiance varies from a maximum I[max] to a minimum of 1/3 I[max]. What is the ratio of the irradiances of the polarized and unpolarized beams?

Homework Equations


The Attempt at a Solution


i got the ratio as 1. can u verify my answer?
 
Last edited:
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hi mogul28! welcome to pf! :wink:

show us what you've tried, and where you're stuck, and then we'll know how to help! :smile:

(same with your other three threads)
 
I got the ratio as 1. can you verify my answer?
 
mogul28 said:
I got the ratio as 1. can you verify my answer?

how do you get 1 ? :confused:
 
Step 1: find V
Step 2: equate that to the ratio of Ip/(Ip+Iu)
 
Show your work.
 

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