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Question
Chemistry
The second order Bragg’s diffraction of X-rays of wavelength 100 pm from a set of parallel lattice planes in a metal occurs at a grazing angle of 30°. The spacing between the successive scattering planes in the cystal is
Q. The second order Bragg’s diffraction of X-rays of wavelength 100 pm from a set of parallel lattice planes in a metal occurs at a grazing angle of
3
0
∘
. The spacing between the successive scattering planes in the cystal is
2276
209
The Solid State
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A
50 pm
13%
B
100 pm
17%
C
150 pm
38%
D
200 pm
32%
Solution:
d-spacing
=
2
s
i
n
θ
nλ
=
2
×
s
i
n
3
0
∘
2
×
100
=
200
p
m