Question

Can you show step by step on how to solve this problem? Thank you!

Two polarizers are oriented so that their transmission axes are oriented perpendicular to each other. The third polarizer is inserted between these two with its transmission axis aligned at 28 degree with respect to one of them. What percent of the intensity of unpolarized incident light will pass through these three polarizes? 10.4% 11.3% 15.1% 12.1% 8.59%

Answer 1

Here as the incident light passes through the first polarizer the intensity becomes Nowit passes through the second polarizer oriented at an angle of 28° with respect to first polarizer. So from Mallus law we have cos (28 = 0.3891 Now this light passes through the third polarizer. So the intensity becomes 1,-0.3891, cos (90-28 = 0.38910 cos, (62) = 0.085910 Percentage(P) of incidentlight that pass through polarizeris given by p-0.08591 x100 E 8.59%)