(II) Missing orders occur for a diffraction grating when
Chapter , Problem 44(choose chapter or problem)
(II) Missing orders occur for a diffraction grating when adiffraction minimum coincides with an interferencemaximum. Let D be the width of each slit and d theseparation of slits, (a) Show that if d = 2D, all even orders(ra = 2, 4, 6, ) are missing. (b) Show there will be missingorders whenever d, _ m1D ra2where m1 and ra2 are integers, (c) Discusss the case d = D,the limit in which the space between slits becomes negligible.
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