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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.

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

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