In this lesson, we will learn how to describe the changes to the polarization angle and intensity of light waves produced by polarizing filters.
Students will be able to
Q1:
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 52.4∘. What is the refractive index of the oil? Give your answer to one decimal place.
Q2:
Unpolarized light passes through two polarizers that have polarization axes 48∘ 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?
Q3:
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?
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