A flake of glass (refractive index 1.5) is placed over one of the openings of a double slit apparatus. The interference pattern displaces itself through seven successive maxima towards the side where the flake is placed. if wavelength of the diffracted light is \[\lambda =600nm\], then the thickness of the flake is

A flake of glass (refractive index 1.5) is placed over one of the open

1.	A flake of glass (refractive index 1.5) is placed over one of the openings of a double slit apparatus. The interference pattern displaces itself through seven successive maxima towards the side where the flake is placed. if wavelength of the diffracted light is \[\lambda =600nm\], then the thickness of the flake is
A.	2100 nm
B.	4200 nm
C.	\[\frac{a}{\lambda }<<1\]
D.	None of these
Answer» D. None of these

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