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Two polarising sheets are placed with th...

Two polarising sheets are placed with their planes parallel, so that light intensity transmitted is max. Through what angle must either sheet be turned so that light intensity drops to half the maximum value ?

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Therefore` `costheta=pm(1)/(sqrt2)`  `rArr`   `theta=pm45^(@)`or `pm135^(@)`
The effect will be same when any of the two sheets is turned through `theta` in any direction.
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FIITJEE-ELECTROMAGNETIC WAVE & WAVE OPTICS-ASSIGNMENT PROBLEMS Objective : Level-II (MULTI CHOICE SINGLE CORRECT)
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