In a wave, the path difference corresponding to a phase difference of \( \phi \) is (A) \( \frac...
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1In a wave, the path difference corresponding to a phase difference of \( \phi \) is
(A) \( \frac{\pi}{2 \lambda} \phi \)
(B) \( \frac{\lambda}{2 \pi} \phi \)
(C) \( \frac{\pi}{2} \phi \)
(D) \( \frac{\lambda}{\pi} \)
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