A) 2a
B) \[a\sqrt{3}\]
C) \[a\sqrt{2}\]
D) a
Correct Answer: D
Solution :
Path difference \[(\Delta x)\] \[=50\,cm\,=\frac{1}{2}m\] \[\therefore \] Phase difference \[\Delta \varphi =\frac{2\pi }{\lambda }\times \]\[\Delta x\Rightarrow \varphi =\frac{2\pi }{1}\times \frac{1}{2}=\pi \] Total phase difference = \[\pi -\frac{\pi }{3}=\frac{2\pi }{3}\] Þ \[A=\sqrt{{{a}^{2}}+{{a}^{2}}+2{{a}^{2}}\cos (2\pi /3)}=a\]You need to login to perform this action.
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