A) \[\frac{4A}{N{{a}^{3}}}\]
B) \[\frac{2A}{N{{a}^{3}}}\]
C) \[\frac{A}{N{{a}^{3}}}\]
D) \[\frac{A}{N{{a}^{2}}}\]
Correct Answer: C
Solution :
In simple cubic lattice volume \[V={{a}^{3}}\] \[\text{Density=}\frac{\text{mass}\,\text{unit}\,\text{cell}}{\text{Volume}\,\text{of}\,\text{unit}\,\text{cell}}\] \[=\frac{A/N}{V}=\frac{A}{N{{a}^{3}}}\]
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