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 ?

Two polarising sheets are arranged with their axes parallel so that the intensity of transmitted polarized light is maximum. Through what angle must the sheet be rotated so that the intensity of transmitted light drops to 1/3 of the maximum intensity?

Two polarising sheet have their polarising directions parallel so that the intensity of the trasmitted light in maximum. Through what angle must the either sheet be turned if the intensity is to drop by one- half?

Two polarising sheets have their polarising directions parallel to each other so that the intensity of transmitted light is maximum. The angle through wihich the either sheet must be turned so that intensity becomes one half the intial value is

Two ploarising sheets are kept with their polarising direction parallel such that the intensity of transmitted light is maximum. Calculate the angle through which one of the sheets must be turned if the intensity of transmitted light is to drop by 1/4 ?

Two polaroids are aligned,so that the intentsity of light emerging out of them is maximum.Through what angle one of them should be rotated ,so that the intensity of light emerging out of them is reduced to half.

Two polarizing sheets have their transmission axes crossed so that no light is transmitted. A third sheet is inserted so that its transmission axis makes an angle theta with the transmission axis of the first sheet. If the middle polarizing sheet is rotating at an angular speed omega about an axis parallel with the light beam, find an expression for the final intensity transmitted through after all three sheets as a function of time. (Original intensity was I_(0) )