For each of the three sheets of polarizing material shown in the drawing, the or

Question

For each of the three sheets of polarizing material shown in the drawing, the orientation of the transmission axis is labeled relative to the vertical. The incident beam of light is unpolarized and has an intensity of 1190.0 W/m2. What is the intensity of the beam transmitted through the three sheets when ?1 = 19.0?, ?2 = 55.0? and ?3 = 100.0? ?
_______ W/m2

labeled relative to the vertical. The incident beam of light is unpolarized and has an intensity of 1190.0 W/m2. What is the intensity of the beam transmitted through the three sheets when ?1 = 19.0, ?2 = 55.0 and ?3 = 100.0 ?_____ W/m2

Explanation / Answer

The intensity of the first analyzer is 1/2 and the others is cos^2(?)

So I = 1/2*I0*cos^2(56.5-19)*cos^2(100-56.5) = 1/2*1270*cos^2(56.5-19)*cos^2(100-56.5) = 210W/m^2

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