Q Messages Courses Help Logout Janel Blair (Student -section: 946) PHYS 202 (Fal

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Q Messages Courses Help Logout Janel Blair (Student -section: 946) PHYS 202 (Fall 2017) Main Menu Contents Grades Syllabus » Hw #8--O Timer Notes Evaluate e Feedback Print 6 Info Print Info course contents » Unpolarized light of intensity 10 w/m2 is incident on polarizer #1. After passing through polarizer #1, the light then passes through polarizer #2 whose transmission axis is at 40 degrees to that of polarizer #1, what is the intensity of the light transmitted through polarizer #27(in units of W/m2) Submit Answer Tries O/2 Post Discussion send Feedback

Explanation / Answer

Given that Io = 10 W/m^2

after passing through polarizer 1

I = Io/2 = 10/2 = 5 W/m^2

after passing through polarizer 2

Intensity is I2 = I1*cos^2(theta)

I2 = 5*cos(40)^2

I2 = 2.93 W/m^2

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