A) \[(2n+1)\lambda \]
B) \[2n\pi \]
C) \[n\pi \]
D) \[(2n+1)\frac{\lambda }{2}\]
Correct Answer: C
Solution :
Phase difference, \[\Delta \phi =\frac{2\pi }{\lambda }\Delta x\] In a constructive interference, \[\Delta \phi =2\pi r\]where \[n=0,1,2,3,...\] \[\therefore \] \[2n\pi =\frac{2\pi }{\lambda }\Delta x\] or \[\Delta x=n\lambda \]You need to login to perform this action.
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