For the structural analysis of crystals, X- r | vedclass

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(A) The structural analysis of crystals relies on the phenomenon of diffraction. For diffraction to occur, the wavelength of the incident radiation mu

Vedclass · Accepted Answer

$X-$ rays have a wavelength of the order of interatomic spacing.

Vedclass · Answer

(A) The structural analysis of crystals relies on the phenomenon of diffraction. For diffraction to occur, the wavelength of the incident radiation must be comparable to the spacing between the scattering centers (atoms) in the crystal lattice. The interatomic spacing in crystals is typically in the range of $0.1 \, nm$ to $0.5 \, nm$ ($1 \, 	ext{AA}$ to $5 \, 	ext{AA}$). $X-$ rays possess wavelengths in this same range, making them ideal for probing the atomic structure of crystals through $X-$ ray diffraction $(XRD)$. Therefore, option $A$ is correct.

For the structural analysis of crystals, $X-$ rays are used because

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