In a certain double slit experimental arrangement interference fringes – McqOptions

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1.	In a certain double slit experimental arrangement interference fringes of width 1.0 mm each are observed when light of wavelength 5000 Å is used. Keeping the set up unaltered, if the source is replaced by another source of wavelength 6000 Å, the fringe width will be [CPMT 1988]
A.	0.5 mm
B.	1.0 mm
C.	1.2 mm
D.	1.5 mm
Answer» D. 1.5 mm

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