Describe a method by which a plane polarised beam of light can be distinguished from a partially plane polarised beam.
Posted by: SAMWEL K. on 14.11.2020
Ask a QuestionPass the light through Analyser.
If PPL is passed and analyser is rotated, the intenssity becomes zero at 90 deg. and maximum at 0 deg
If Partially PPL is passed then intensity falls as we rotate and doesn't becomes zero at any angle..
From this we can find whether given light is PPL or not.
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