HSC Together Year 12 Physics: Malus’ Law

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Malus’ Law

This section is part of the HSC Physic syllabus Module 7: Nature of Light under Light, the Wave Model. Malus’ Law states that when completely plane-polarized light is incident on the analyzer, the intensity I of the light transmitted by the analyzer is directly proportional to the square of the cosine of the angle between the transmission axes of the analyzer and the polarizer. The law relates the intensity of light when passed through a polariser.

 

Introduction to Malus’ Law

This video introduces the law.

 

Demonstration

 

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