Physics-
General
Easy
Question
The figure shows a transparent slab of length 1m placed in air whose refractive index in x direction varies as 
The optical path length of ray R will be
- 1 m
m
m
m
m
m
m
The correct answer is: m
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In the YDSE shown the two slits are covered with thin sheets having thickness t & 2t and refractive index 2m and m. Find the position (y) of central maxima
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