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(i) State law of Malus. (ii) Draw a graph showing the variation of intensity (I) of polarised light

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Law of Malus : According to Malus, when completely plane polarised light is incident on the analyser, the intensity I of the light transmitted by the analyser is directly proportional to the square of the cosine of angle between the transmission axes of the analyser and polarizer i.e Iαcos2θ.

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Variation of Intensity (I) of polarised light with angle between polariser and analyser.
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