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Physics 2 Final - Part 2 of 2
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32. Electromagnetic Waves / Polarization & Polarization Filters / Problem 5

An unpolarized beam of light from an ordinary tungsten bulb is incident in the x direction and has an intensity Iinc. It crosses two ideal linear sheet polarizers stacked one behind the other. The transmission axis of the first sheet is perpendicular to the x-axis, while the transmission axis of the second sheet forms an angle Φ  with respect to the first. Determine the value of Φ if the intensity of the light emerging from the two polarizers is Iinc/6.
Diagram showing two linear polarizers with light direction and angle Φ for physics course on polarization filters.

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