A thin mica sheet of thickness 
and refractive index ( 
) is introduced in the path of the light from upper slit. The wavelength of the wave used is 
. The central bright maximum will shift
Text Solution
Verified by ExpertsThe correct answer is:
A
On introducing mica sheet, fringe shift 
where, 
is the thickness of sheet.
So, central bright maximum will shift two fringes upward.
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