A polaroid examines two adjacent plane polarise beams A and B whose planes of polarisation are mutually perpendicular. In the first positionof the analyser beam B shows zero intensity. From this position a rotation of 30^(@) shows that the two beams have same intensity. The ratio of intensities of the two beams I_(A) and I_(B) will be

A polaroid examines two adjacent plane polarise beams A and B whose pl

1.	A polaroid examines two adjacent plane polarise beams A and B whose planes of polarisation are mutually perpendicular. In the first positionof the analyser beam B shows zero intensity. From this position a rotation of 30^(@) shows that the two beams have same intensity. The ratio of intensities of the two beams I_(A) and I_(B) will be
Answer» `1:3` `3:1` `SQRT(3):1` `1:sqrt(3)` ANSWER :A

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