Pad 3:12 AM * 87%- webassign.net 6. -12 points SerPSE9 38.XP012 My Notes Ask You
ID: 1790719 • Letter: P
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Pad 3:12 AM * 87%- webassign.net 6. -12 points SerPSE9 38.XP012 My Notes Ask Your Teacher Three polarizing disks whose planes are parallel are centered on a common axis. The direction of the transmission axis in each case is shown in Figure P38.42 relative to the common vertical direction. A plane-polarized beam of light with Eo parallel to the vertical reference direction is incident from the left on the first disk with intensity Ij = 12.0 units (arbitrary) 02 Figure P38.42 Calculate the transmitted intensity If for the following cases (a) 1-17.0°, 2 = 38.0°, and : 60.0 units (b) = 0°, = 30.0°, and 3 = 60.0 units Need Help? Read It 7. 1/1 points | Previous Answers SerPSE9 38.XP.013 My Notes Ask Your Teacher How far above the horizon is the Moon when its image reflected in calm water is completely polarized? (nwater 1.33) 36.9 (above the horizon) Need Help?ReadItExplanation / Answer
a)
after passing through the first polarizer ,the intensity of transmitted light
I1=12cos2(17)=10.974
after second polarizer ,the intensity is
I2=10.974cos2(38-17)=9.565
after third polarizer the final intensity is
If=9.565cos2(60-38)=8.223
b)
I1=12cos2(0)=12
I2=12cos2(30-0)=9
If=9cos2(60-30)=6.75
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