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Bragg Scattering of Waves Incident at an Arbitrary Angle

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Could you please help me with the follow question (the diagram is attached):

Bragg's Law applies to a very particular diffraction geometry. Determine the condition for constructive interference for the following, more general, geometric configuration. The incident beam approaches a row of point scatters at an angle (please see the attached file). the separation between point scatterers is a. At what angles, (please see the attached file), does constructive interference occur?

(Please see the attached file for the diagram)

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Solution Summary

In this solution, we determine the condition for constructive interference of waves of a given wavelength incident at a given angle on the surface of a crystal with scatterers a given distance apart.

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Constructive interference occurs when the difference in path length between two consecutive beams is an integer multiple ...

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