Figure shows two coherent sources \( S_{1}-S_{2} \) vibrating in same phase. \( A B \) is a stra...

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Figure shows two coherent sources \( S_{1}-S_{2} \) vibrating in same phase. \( A B \) is a straight wire lying at a far distance from the sources \( S_{1} \) and \( S_{2} \). Let \( \frac{\lambda}{d}=10^{-3} . \angle B O A=0.12^{\circ} \). How many bright spots will be seen on the wire, including points \( A \) and \( B \).
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