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Two beams, A and B, of plane polarized l...

Two beams, A and B, of plane polarized light with mutually perpendicular planes of polarization are seen through a polaroid. From the position when the beam A has maximum intensity (and beam B has zero intensity), a rotation of Polaroid through `30^(0)` makes the two beams appear equally bright. If the initial intensities of the two beams are `I_(A)` and `I_(B)` respectively, then `I_(A)//I_(B)` equals :-

A

`1:3`

B

`3:1`

C

`sqrt(3):1`

D

`1:sqrt(3)`

Text Solution

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The correct Answer is:
A
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