Answer to Question #2973 in Optics for varya

Question #2973
Unpolarised light of intensity I falls on a polaroid. The emerging light is passed thru another polaroid whose axis makes an angle of 30 degrees with respect to the first one. What is the intensity of final emergent light?
1
Expert's answer
2011-06-10T08:37:05-0400
By the Malus' law:
I = I0 cos α = I0 cos 30 = I √(3) /2.

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