Q. 9

Distinguish betwe

Answer :

The plane of vibrations can occur in one particular plane in case of polarised light. The plane of vibration remains randomly oriented in case of unpolarised light.


It is true that the intensity of polarized light emitted by a Polaroid depend on its orientation.


According to Malus law the intensity of the transmitted beam is given as,


I=I0 cos2θ


I= I0 cos2(60)


I= I0 /4


Thus, percentage of light transmitted is given by,



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