In a Young's double slit experiment, three polarizers are kept as shown in the figure. The
transmission axes of 
and 
are orthogonal to each other. The polarizer 
covers both the slits with its transmission axis at 
to those of 
and 
. An unpolarized light of wavelength 
and intensity 
is incident on 
and 
. The intensity at a point after 
where the path difference between the light waves from 
and 
is 
, is
Text Solution
Verified by ExpertsB
(Unpolerised light) (Polerised light)
after passing through third poleriser, Intensity of both the waves must be 
now, at a point where path diff is 
, phase difference
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