Diffraction patterns relate to orientation of array of dots

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What is the diffraction pattern of:
a) a square array of dots?
b) a rectangular array of dots?
c) a parallelogram array of dots where the angle is not 900?
d) a hexagonal array of dots?

How do the orientations of the diffraction patterns relate to the orientation of the array of dots?

Reference no: EM13646188

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