Light of intensity I 0 and polarized parallel tothe transmission axis of a polar

Question

Light of intensity I0 and polarized parallel tothe transmission axis of a polarizer is incident on an analyzer. a) If the transmission axis of the analyzermakes an angle of 41° with the axis of the polarizer,what is the intensity of the transmitted light?
b) What should the angle between the transmission axes be to makeI / I0 = 1/4?
a) If the transmission axis of the analyzermakes an angle of 41° with the axis of the polarizer,what is the intensity of the transmitted light?
b) What should the angle between the transmission axes be to makeI / I0 = 1/4?

Explanation / Answer

From Malus law intensity of transmitted light I =Io cos 2 Initensity of transmitted light I = Io cos2 ( 41 )                                              = 0.569 Io (b). Given I = Io cos 2           1/4 = cos 2 from this = 60 degrees

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