In the figure, initially unpolarized light is sent into a system of three polarizing sheets whose polarizing directions make angles of θ1 = 55°, θ2 = 19°, and θ3 = 47° with the direction of the y axis. What percentage of the light's initial intensity is transmitted by the system?

Let intensity of unpolarised light = I On passing through first polariser , the inetsity becomes = I /2 ( as the intensity of unpolarised light becomes half after passing through first polariser) On passing through the second polariser, the intensity of the light becomes : = (I/2) Cos2(180-55-19) ..(from Malus Law) = 0.03798 I On passing through the second polariser, the intensity of the light becomes : = (0.03798I ) Cos2(180-47-19) ..(from Malus Law) = 0.0062832 I Percentage of original light intensity transmitted = 0.62832 %

Answered: In the figure, initially unpolarized…

College Physics

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ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

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In the figure, initially unpolarized light is sent into a system of three polarizing sheets whose polarizing directions make angles of θ₁ = 55°, θ₂ = 19°, and θ₃ = 47° with the direction of the y axis. What percentage of the light's initial intensity is transmitted by the system?

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