A partially plane polarised beam of light is passes thorugh a polaroid. Show graphically the variation of transmitted light with angle of rotation of polaroid.
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According to Law of Malus, `I_(p) = I_(0) cos^(2) theta` As the beam is originally partially polarised, therefore resultant intensity of transmitted light is `I = I_(unpol) + I_(0) cos^(2) theta`. The veriation of transmitted light with angle of rotation of polaroid is shown in Fig.
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