what purpose has wavelength got to do with the scattering of light?

Asked by reema saxena | 1st Jan, 2014, 03:20: PM

Expert Answer:

Scattering is possible only when the  wavelength of the wave is comparable to the size of the object.
In crystals the interatomic distance is of the order of few Angstrom.
The wavelength of X - rays is also of the order of few Angstroms ( 0.1 to 100 A).
Therefore only X - rays can be used to determine the crystal structure.

Answered by Komal Parmar | 2nd Jan, 2014, 11:40: AM

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