Main Menu Contents Grades Timer Notes O Evaluate Feedback Print Info Three polar

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Main Menu Contents Grades Timer Notes O Evaluate Feedback Print Info Three polarizing plates whose planes are parallel are centered on a common axis. The directions of the transmission axes relative to the common vertical direction are shown in the figure below. A linearly polarized beam of light with the plane of polarization parallel to the vertical reference direction is incident from the left on the first disk with intensity I 11.1 units (arbitrary). Calculate the transmitted intensity, If, when ?,-18.00. Do not enter units. Submit Answer Tries o/20 Calculate the transmitted intensity, Ir, when ?2 38.50. Do not enter units. Submit Answer Tries o/20 Calculate the transmitted intensity, If, when 03-59.5°. Do not enter units. Submit Answer Tries 0/20

Explanation / Answer

a) Using Malus law,

If1 = I1*cos^2(theta1)

= 11.1*cos^2(18)

= 10.04 <<<<<<-----------Answer

b) If2 = If1*cos^2(theta2 - theta1)

= 10.04*cos^2(38.5 - 18)

= 8.81 <<<<<<<-----------Answer

c) If3 = If2*cos^2(theta3 - theta2)

= 8.81*cos^2(59.5 - 38.5)

= 7.68 <<<<<<--------Answer

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