A) X-rays are highly penetrating radiations
B) wavelength of X-rays is of the order of nuclear size
C) X-rays have wavelength of the order of interatomic spacing
D) X-rays are coherent radiations
Correct Answer: C
Solution :
Crystals are used for diffractions grating and also X-rays have wavelength of the order of interatomic spacing. So these are used to analysis crystal structure.
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