Plane-polarized light of intensity 200 W/m^2 falls on a polarizing filter whose axis is at 90^circ to the plane of polarization. The transmitted intensity is:

  1. 100 W/m^2
  2. 0 W/m^2
  3. 200 W/m^2
  4. 50 W/m^2
Answer

B) 0 W/m^2

I = I0cos^2 90^circ = 0: the filter blocks the light completely. SLO P-11-D-06 · Understanding

Physics MCQ · More Polarization MCQs · Practise