In a system of two crossed polarisers, it is found that the intensity of light from the second polariser is half from that of first polariser. The angle between their pass axes is
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
C
: Given : 
of 
If the pass axis of 
makes an angle 
with the pass axis of 
, then
(By Malus' law)
or 
or 
or 
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