Please answer the following question with explanation
Asked by deepakudgiri29
16th November 2018,
5:23 PM
Answered by Expert
Answer:
If the polaroid is rotated by an angle θ from maximum intensity position, then intensity as per Malus law I = I0 cos2θ.
Since two beams A and B are polarised in mutually perpendicular direction,
polaroid is at an angle 30° with the polaraisation direction of beam A, same polaroid will be at angle 60º
with the polarisation direction of beam B.
When intensities are same after seeing through poloroid, we have, IA cos230 = IB cos260
hence 
Answered by Expert
17th November 2018,
2:14 AM
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