Question: Monochromatic coherent light of amplitude E0 and angular frequency - passes through three parallel slits each separated by a distance d from its neighbor. (a)

Monochromatic coherent light of amplitude E0 and angular frequency - passes through three parallel slits each separated by a distance d from its neighbor.
(a) Show that the time-averaged intensity as a function of the angle θ is
(b) Determine the ratio of the intensities of the primary and secondary maxima.

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