Polarized light passes through a polarizing filter which has an
axis of transmission oriented at θ1 = 39.4 degrees from
vertical. The intensity of the emerging light is measured to be I1
= 700 W/m2. The polarizer is then rotated so that its axis of
transmission is θ2 = 70.9 degrees from vertical, and the
emerging light is now measured to be 290 W/m . Find the intensity
of the incident polarized light and its orientation with respect to
vertical....