The intensity of each of the two slits in Young's double slit experiment is \( I_{0} \). Calcula...

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The intensity of each of the two slits in Young's double slit experiment is \( I_{0} \). Calculate the minimum separation between the two points on the screen where intensities are \( 2 I_{0} \) and \( I_{0} \). Given, the fringe width equal to \( \beta \).
(a) \( \frac{\beta}{4} \)
(b) \( \frac{\beta}{3} \)
(c) \( \frac{\beta}{12} \)
(d) None of these
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