A) 4 times
B) 1/4
C) doubled
D) unchanged
Correct Answer: A
Solution :
In Young s experiment Fringe width \[\beta =\frac{\lambda D}{d}\] d = separation of slit D = distance between slits and screen \[\beta =\frac{\lambda (2D)}{d/2}=4\left( \frac{\lambda D}{d} \right)\] Fringe width becomes 4 times.You need to login to perform this action.
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