A) \[\frac{1}{3}Times\]
B) \[\frac{1}{9}Times\]
C) \[3\,Times\]
D) \[9\,Times\]
Correct Answer: A
Solution :
The fringe width \[(\beta )\] is given by \[\beta =\frac{D\lambda }{d}\] When separation of slits is d = 3 d then \[\beta =\frac{D\lambda }{3d}=\frac{\beta }{3}\]You need to login to perform this action.
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