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 \[30{}^\circ \] makes the two beams appear equally bright. If the initial intensities of the two beams are\[{{I}_{A}}\]and \[{{I}_{B}}\] respectively, then\[\frac{{{I}_{A}}}{{{I}_{B}}}\]equals

Two beams, A and B, of plane polarized light with mutually perpendicul

1.	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 \[30{}^\circ \] makes the two beams appear equally bright. If the initial intensities of the two beams are\[{{I}_{A}}\]and \[{{I}_{B}}\] respectively, then\[\frac{{{I}_{A}}}{{{I}_{B}}}\]equals
A.	3
B.	\[\frac{3}{2}\]
C.	1
D.	\[\frac{1}{3}\]
Answer» E.