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CBSE Class 12-science Answered

An analyzing nicol examines two adjacent plane polarized beams A and B whose planes of polarization are mutually perpendicular .In one position of the analyzer, beam B shows zero intensity. From this position a rotation of 300 shows the two beams are matched (i.e. of equal intensity).Find the intensity ratio of the two beams.
Asked by Topperlearning User | 13 Jun, 2014, 01:44: PM
answered-by-expert Expert Answer

The intensity of the transmitted light is given by .Initially, the beam B shows zero intensity. This means that for beam B .As the planes of polarization of the two adjacent plane polarized beams A and B are mutually perpendicular, it is clear that for beam A. When the analyzer is rotated through 300, for beam A; for beam B.If  is the intensity of beam A, then it will also be that for beam B.

 
Answered by | 13 Jun, 2014, 03:44: PM
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