crystal was analyzed with x-rays having 1.50 Å wavelength. A reflection was produced at an angle of θ = 23.1°. Assuming n = 1, what is the distance between the layers of atoms in the crystal?
A. 7.65 Å
B. 3.82 Å
C. 0.523 Å
D. 0.815 Å
E. 1.91 Å
By Bragg equation
n = 2 d sin
So, distance between two layers (d) =
Given,
= 23.10
n = 1
Wavelength () = 1.50 Ao .
So, d =
Or, d =
Or, d = 1.91 Ao .
So, correct option is E) 1.91 Ao .
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