Unpolarized light passes through two polarizers that have polarization axes apart from each other. The intensity of the light after it passes through both polarizers is 0.15 W/m2. What is the initial intensity of the light?
Unpolarized light traveling in air that has a refractive index of 1 reflects from a film of oil. The angle from the normal to the surface of the oil of reflected light that is completely polarized is . What is the refractive index of the oil? Give your answer to one decimal place.
Unpolarized light passes through two polarizers. The light has an initial intensity of 1.8 W/m2. The intensity of the light after it passes through both polarizers is 0.85 W/m2. What is the angle between the polarization axes of the polarizers?