Solid State Question 20
Question: Total volume of atoms present in a face-centred cubic unit cell of a metal is (r is atomic radius)
Options:
A) $ \frac{12}{3}\pi r^{3} $
B) $ \frac{16}{3}\pi r^{3} $
C) $ \frac{20}{3}\pi r^{3} $
D) $ \frac{24}{3}\pi r^{3} $
Show Answer
Answer:
Correct Answer: B
Solution:
[b] The face centered cubic unit cell contains 4 atom
$ \therefore $ Total volume of atoms $ =4\times \frac{4}{3}\pi r^{3}=\frac{16}{3}\pi r^{3} $
BETA
