Consider an interference pattern between two coherent sources. If \( I_{1} \) and \( I_{2} \) be...

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Consider an interference pattern between two coherent sources. If \( I_{1} \) and \( I_{2} \) be intensities at points
\( \mathrm{P} \) where the phase difference are \( \frac{\pi}{3} \) and \( \frac{2 \pi}{3} \)

W respectively, then the intensity at maxima is
(1) \( \frac{I_{2}-3 I_{1}}{2} \)
(2) \( \frac{I_{1}-3 I_{2}}{2} \)
(3) \( \frac{3 I_{1}-I_{2}}{2} \)
(4) \( \frac{I_{2}-3 I_{1}}{2} \)
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