Crystal Structures
Bravais lattices, unit cell, Miller indices and Bragg diffraction
Parameters
Unit Cell (3D)
Self-Assessment
Q1. How many atoms does an FCC unit cell contain?
A
1
B
2
C
4
D
8
Q2. What process does Bragg's law describe?
A
Electron hopping
B
X-ray diffraction by a crystal
C
Photoelectric effect
D
Atomic vibrations
Q3. What crystal structure does Si belong to?
A
Diamond structure
B
FCC
C
BCC
D
HCP
Q4. FCC and HCP have the same APF. What is this value?
A
52%
B
68%
C
34%
D
74%