X-rays can be used to study crystal structure | vedclass

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(A) To study the crystal structure,the wavelength of the incident radiation must be of the same order of magnitude as the interatomic spacing in the c

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$2 \,\mathring{A}$ to $0.1 \,\mathring{A}$

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(A) To study the crystal structure,the wavelength of the incident radiation must be of the same order of magnitude as the interatomic spacing in the crystal lattice.The interatomic spacing in crystals is typically in the range of $1 \,\mathring{A}$ to $3 \,\mathring{A}$.$X$-rays have wavelengths in the range of $0.1 \,\mathring{A}$ to $10 \,\mathring{A}$.Specifically,for diffraction by crystal planes (Bragg's Law),the wavelength should be comparable to the lattice constant,which is approximately $2 \,\mathring{A}$ to $0.1 \,\mathring{A}$.

$X$-rays can be used to study crystal structure if the wavelength lies in the range:

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