While direct sunlight is unpolarized, light coming from a clear blue sky is linearly polarized to some extent. Assume all the lightfrom the blue sky is linearly polarized in the same direction. Suppose a school library has installed skylight windows in the ceilingof the atrium to allow for natural lighting. The windows are polarized so that the intensity of the light, after passing through thewindows, is 73% of the original intensity of the light from the blue sky. what is the angle between the polarization direction of thelight and the polarization axis of the windows?Additional Materials

This problem can be solved using the formula for Malus law.

Answered: While direct sunlight is unpolarized,…

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Problem 8: Unpolarized light of intensity I0 = 850 W/m2 is incident upon two polarizers. After passing through both polarizers the intensity is I2 = 220 W/m2. Part (a) What is the intensity of the light after it passes through the first polarizer in W/m2? Part (b) Write an equation for the angle between the polarizers in terms of the initial (I0) and final (I2) intensities. Part (c) Find the angle between the polarizers in degrees.
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Experiments show that the ground spider Drassodes cupreus uses one of its several pairs of eyes as a polarization detector In fact, the two eyes in this pair have polarization directions that are at right angles to one another Suppose linearly polarized light with an intensity of 775 W/m² shines from the sky onto the spider and that the intensity transmitted by one of the polarizing eyes is 774 W/m². For this eye, what is the angle between the polarization direction of the eye and the polarization direction of the incident light?
An unpolarized beam of light with an intensity of 5000 W/m2 is incident on two ideal polarizing sheets. If the emerging light has an intensity 0.200 times the original intensity of the incident beam, what is the angle between the two polarizers?
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