Question
Two coherent plane waves travel at angle $\theta_{0}$ toward a photographic plate. Show the distance between fringes of constructive interference on the plate is given by $d=\lambda / \sin \theta_{0}$. See Fig. $25.43$.
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Consider two points A and B on the photographic plate, where constructive interference occurs. Let the distance between these points be d. Show more…
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As in Fig. $25.41,$ two coherent plane waves travel toward a photographic plate, one incident normally and the other incident at angle $\theta_{0}$. Show that the distance between fringes of constructive interference on the plate is given by $d=\lambda /\left(\sin \theta_{0}\right)$.
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