1. The problem statement, all variables and given/known data 1.An unpolarized beam of light is incident on a stack of four ideal polarizing filters. Each of the second, third and fourth polarizers is rotated by 30.0o relative to the preceding polarizer. In this way, the axis of the first polarizer is perpendicular to the axis of the fourth polarizer in the stack. Calculate the fraction by which the incident intensity is reduced after going through the polarizers. The first polarizer will be vertical which will 1/2 the intensity; the second will be at 60° so 1/2(cos60°squared)=1/8; the third will be at 30° so 1/8(cos30°squared)=3/32; the last polarizer is horizontal and am not sure as to how much the intensity will be reduced. cos(0°)=1, so do I multiply 3/32 by 1 to get the final intensity of the light?