question

light from a sodium lamp (s) passes through two polaroid sheets and as shown in fig. what will be the effect on the intensity of the light transmitted (i) by and (ii) by on rotating polaroid about the direction of propagation of light ? justify your answer in both cases.

 

 

 

 

 

 

i) the intensity transmitted by p1 is unaffected because the intensity of unpolarized light transmitted by a polaroid does not depend on the orientation of the polaroid with respect to the direction of propagation of light.

ii)the intensity of light transmitted by p2 will vary from i1to zero.
as per malus’ law,
where is the angle between the pass axis of the polaroid p2and the pass
the axis of polaroid p1 .
asvaries from