A) its energy is high
B) it can penetrate the material
C) its wavelength is comparable to interatomic distance
D) its frequency is low
Correct Answer: C
Solution :
Crystal structure is .explored through the diffraction of waves having a wavelength comparable with the interatomic spacing \[({{10}^{-10}}m)\] in crystals. Radiation of longer wavelength cannot reslove the details of structure, while radiation of much shorter wavelength is diffracted through inconveniently small angles. Usually diffraction of \[X-ray\] is employed in the study of crystal structure as \[X-ray\] have wavelength cam parable to interatomic spacing.
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