In Fraunhofer diffraction due to a single sli | vedclass

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(A) In Fraunhofer diffraction by a single slit of width $a$,the condition for the $n^{th}$ order minimum is given by the equation $a \sin 	heta = n\l

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$n\lambda$

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(A) In Fraunhofer diffraction by a single slit of width $a$,the condition for the $n^{th}$ order minimum is given by the equation $a \sin 	heta = n\lambda$,where $n = 1, 2, 3, \dots$.Here,$a \sin 	heta$ represents the path difference between the secondary wavelets originating from the top and bottom edges of the slit.Therefore,the path difference for the $n^{th}$ order minimum is $n\lambda$.

In Fraunhofer diffraction due to a single slit,find the path difference for the $n^{th}$ order minimum.

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