If the interplanar distance in the crystal is 287 pm , and the angle of maximum reflection is found to be 7.29 ∘, what is the wavelength of the x-ray beam? (assume n=1.)

Explanation:

Given

Interplanar distance

Maximum angle of reflection=

By Bragg's law

d=

Where =wavelength of x-ray beam

if they have a finite resultant

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