Two coherent light sources S1 and S2 (l= 6000 Å) are 1mm apart from e – McqOptions

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1.	Two coherent light sources S1 and S2 (l= 6000 Å) are 1mm apart from each other. The screen is placed at a distance of 25 cm from the sources. The width of the fringes on the screen should be [CPMT 1990]
A.	0.015 cm
B.	0.025 cm
C.	0.010 cm
D.	0.030 cm
Answer» B. 0.025 cm

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