A) \[\frac{20}{3}\pi {{r}^{3}}\]
B) \[\frac{24}{3}\pi {{r}^{3}}\]
C) \[\frac{12}{3}\pi {{r}^{3}}\]
D) \[\frac{16}{3}\pi {{r}^{3}}\]
Correct Answer: D
Solution :
Key Idea Volume of an atom \[=\frac{4}{3}\pi {{r}^{3}}\] In fee, number of atoms per unit cell \[=4\] \[\therefore \] Volume of total atoms\[=4\times \frac{4}{3}\pi {{r}^{3}}\] \[=\frac{16}{3}\pi {{r}^{3}}\]
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