An electron beam accelerated through 869 volts is incident on an FCC lattice with a lattice parameter of 79 nm. Calculate the Bragg angles for the first-order diffraction from (100), (110), and (111) planes. Specify the maximum order of diffraction that can be observed for (100) planes. Calculate the density of the material, if the atomic weight is 109.5 Kg/kmol.
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The length of wingspan of Blue jay =
100
41
m
The length of wingspan of Golden eagle =2
2
1
m=
2
5
m
The length of wingspan of Albatross =3
5
3
m=
5
18
m
The length of wingspan of Sea gull =1
10
7
m=
10
17
m
(a) Difference between the lengths of wingspan of Albatross and Sea gull
=(
5
18
−
10
17
) m
=
10
36−17
m
=
10
19
m
=1
10
9
m
(ii) Difference between the lengths of wingspan of Golden eagle and Blue jay
=(
2
5
−
100
41
) m
=
100
250−41
m
=
100
209
m
=2
100
9
m
Explanation:
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