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 thepolarizer, 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 thepolarizer, 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

a)We have:
       = 410        I = I0cos2          = I0cos2  410           =I0 0.569 b)   I/I0   = 1/4       cos =I/I0       = 1/4 =1/2       = 1/4 =1/2

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