A) \[\frac{\pi }{2\lambda }\varphi \]
B) \[\frac{\pi }{\lambda }\varphi \]
C) \[\frac{\lambda }{2\pi }\varphi \]
D) \[\frac{\lambda }{\pi }\varphi \]
Correct Answer: C
Solution :
For 2p phase difference ® Path difference is l \ For f phase difference ® Path difference is \[\frac{\lambda }{2\pi }\times \varphi \]
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