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Derive the Bragg's law and describe the powder method to determine crystal structure of powdered specimen.
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written 3.9 years ago by |
Bragg's Law –
Consider a set of parallel lattice planer of crystal separated by distance d apart.
Suppose a narrow beam of X-rays of the wavelength λ be incident upon these planes at angle θ as shown in figure.
The beam will be reflected in all the directions by atoms …