can someone please help with the prelab question at the bottom?! :) respect to t

Question

can someone please help with the prelab question at the bottom?! :)

respect to the first polarizer is Eq cos (sec Fig.1). Since the intensity of the light varies as the square of the elements field, the light intensity transmitted through the second filter is given by Flectnc Field Transmitted through Three Polarizers Unpolanzed light passes through 3 polarizers (see Fig.2). The first and last polarizers are oriented at 90degree with respect each other. The second polarizer has its polarization axis rotated an angle from the first polarizer Therefore, the third polarizer is routed an angle from the second polarizer. The intensity after pouting through the first polarizer is 11 and the intensity after passing through the second polarizer, I2. is given by The intensity after the third polarizer. I3. is given by Using the trigonometric identities. cos(alpha - beta) = cos alpha cos beta + sin alpha sin beta and cos sin = 1/2 sin(2 ) find a simplified relationship for I3 in terms of I1 and the angle .

Explanation / Answer

I3 = I1 *(1/4*sin^2(2phi))

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