In YDSE a light containing two wavelengths 500 nm and 700 nm are used. – McqOptions

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1.	In YDSE a light containing two wavelengths 500 nm and 700 nm are used. Find the minimum distance where maxima of two wavelengths coincide. Given \[D/d={{10}^{3}}\], where D is the distance between the slits and the screen and d is the distance between the slits.
A.	1.2 m
B.	3.5 mm
C.	2.8 cm
D.	8.1 mm
Answer» C. 2.8 cm

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