In placing a thin sheet of mica of thickness 12 × 10 –5 cm in the path of one of the interfering beams in YDSE, the central fringe shifts equal to a fringe width. Find the refractive index of mica. Given λ = 600 nm –
Text Solution
Verified by ExpertsThe correct answer is:
A
The given thickness of the mica sheet is 
.
This is converted to meters as 
.
The given wavelength of light is 
.
This is converted to meters as 
.
The shift in the central fringe, 
, is given as equal to one fringe width, 
.
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