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Unformatted text preview: I 0 is incident. The first polarizer is aligned so that the direction of the wires is in the z-direction at t =0, and the second polarizer is aligned so that the direction of the wires at t =0 is in the y-direction. The first polarizer rotates clockwise with an angular frequency ω , and the second polarizer rotates counterclockwise with the same angular frequency. 1. Write the direction of the polarization vector of each polarizer as a function of the time t . 2. What is the intensity of the light after the first polarizer but before the second? (In between the two polarizers!) 3. What is the intensity of the light after the second polarizer? 4. What is the frequency of the dark–bright–dark–… transitions on a screen placed after the second polarizer? Useful formula: sin 2 α = 1 2 1 − cos2 ( ) . Good luck !...
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- Spring '09
- Physics, Polarizer, 600 nm, polarizer rotates