A system of three polarizers 
is set up such that the pass axis of 
is crossed with respect to that of 
. The pass axis of 
is inclined at 
to the pass axis of 
. When a beam of unpolarized light of intensity 
is incident on 
, the intensity of light transmitted by the three polarizers is 
. The ratio ( 
) equals (nearly)
Text Solution
Verified by ExpertsD
Since unpolarised light falls on 
intensity of light transmitted from 
Pass axis of 
will be at an angle of 
with 
Intensity of light transmitted from
Pass axis of 
is at an angle of 
with 
Intensity of light transmitted from
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