Unpolarized light propagating along the x-axis from the left in the image above encounters two polarizing filters in a row. The first filter is oriented with its polarization axis at θ1 = 80 degrees from the y-axis, and the second is oriented with its polarization axis at θ2 = 65 degrees from the y-axis. What is the final intensity of the light as a fraction of the original (pre-filter) intensity? Ive tried doing this problem in every conceivable way possible and I cant get it right. Please help! I know you have to use a variation of I2=I0*cos^2(theta1) *cos^2(theta2-theta1), but this isnt correct, so what am I doing wrong? Thanks!