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Constants Part A Unpolarized light with intensity Io is incident on two polarizing filters. The axis of the first filter makes an angle of ?-60 with the vertical, and the axis of the second filter is horizontal. What is the intensity of the light after it has passed through the second filter? Express your answer in terms of Io. 0.1251,o SubmitPrev Previous Answers Request Answer X Incorrect; Try Again; 2 attempts remaining Provide Feedback Next>
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Intensity of light after passing through first polarizer: I = 0.5 I_o after passing through first polarizer it will be polarized along first polarizer ie. making angle 60 degree with vertical or angle 30 degree with horizontal. Thus intensity after passing through second polarizer I_f = I cos^2 theta = 0.5I_o COS^2 30 degree = 0.375 I_o