Plane-polarized light of intensity 300 W/m^2 falls on a polarizing filter whose axis is at 75^circ to the plane of polarization. The transmitted intensity is:

  1. 40.2 W/m^2
  2. 20.1 W/m^2
  3. 201 W/m^2
  4. 10 W/m^2
Answer

B) 20.1 W/m^2

I = I0cos^2theta = 300cos^2 75^circ = 20.1 W/m^2. SLO P-11-D-06 · Understanding

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