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14.Two beams, A and B, of plane polarized light withmutually perpendicular planes of polarization areseen through a polaroid. From the position whenthe beam A has maximum intensity (and beam Bhas zero intensity), a rotation of polaroid through30° makes the two beams appear equally bright. Ifthe initial intensitites of the two beams are la and Igrespectively, then A equals : [JEE(Main)-2014](1) 1(2)(3) 3 |
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