Irradiances of polarized and unpolarized beams

[mogul28]

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?

 

[tiny-tim]

hi mogul28! welcome to pf!

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

(same with your other three threads)

 

[mogul28]

I got the ratio as 1. can you verify my answer?

 

[tiny-tim]

I got the ratio as 1. can you verify my answer?

how do you get 1 ?

 

[mogul28]

Step 1: find V
Step 2: equate that to the ratio of Ip/(Ip+Iu)

 

[Redbelly98]

Show your work.