Vertically polarized light passes through two polarizers, the first at 66° to the vertical space and...

Vertically polarized light passes through two polarizers, the first at 66° to the vertical space and the second at 85° to the vertical. What fraction of the light gets through?
%

Expert Solution

Let the intensity of the polarized light be I.

From Malus law ,

The intensity of light after passed through first polarizer I ' = I cos ² 66

I ' = 0.16543 I

Intensity of the light after passed through second polarizer I " = I ' cos 2 (85-66)

I " = (0.16543 I ) cos ² 19

=0.1478 I

Required fraction = I " / I = 0.1478

Percentage = 14.78 %

genius_generous answered 2 years ago

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