anonymous
  • anonymous
how do I calculate intensity of beam after polarization?
Physics
katieb
  • katieb
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anonymous
  • anonymous
The intensity after passing through the first polaroid is I/2 where I is the Original intensity. after passing through the 2nd polaroid the intensity is \[I \cos ^{2}\phi/2\] [Malus Law]
anonymous
  • anonymous
where phi is the angle the 2nd polaroid makes with the first.
anonymous
  • anonymous
half the intensity is theta/2? I haven't seen that before can you explain why its theta/2

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anonymous
  • anonymous
lozoot93: thanks for your answer! Romero: half the intensity is the Original intensity (I) divided by 2 as shown in the equation; the theta belongs to the cos^2

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