Problem 4: Polarization PART A: An unpolarized light beam goes through two polaroid filters. The first filter has its axis oriented at 30 from the vertical direction, and the second filter has its axis oriented at 350 from the vertical direction. The intensity of the light beam before passing through the two polarizers is lo=3W/m2. Find: a) The intensity of the light after passing through the two polaroid filters. Unpolarized light after passing through the first filter will become polarized parallel to axis #1: 3. W m2 = 1.5- W 2 2 m2 After passing through filter #2, the light will be polarized parallel to axis #2 and will have an intensity of 12 = / cos250 = 1.5-cos250 = 1.489 m2 b) If we use a third polaroid filter placed after the second polaroid filter, and we see that all the light has been absorbed, what is the orientation of this third filter with respect to the vertical direction? Axis #3 would need to be at an angle of 35+90=135 with respect to the vertical