Question

Why visible light cannot be used to study the crystal structure?

Answer 1

Hey Mate..

To study the crystal structure we need a special tool, which could able to tell us the atomic arrangement of the crystal. This is possible only through diffraction. For diffraction the wavelength of light used should be matches with the inter atomic distance. So we cannot use the visible light as its wavelength is 400 nm to 700 nm. X-rays are having wavelength of around an angstroms which is same as the inter atomic distance of the crystal.

Hope it helped:-):-):-)