A) 1
B) 2
C) 3
D) 4
Correct Answer: A
Solution :
Number of unit cell in simple cubic = 1 atom/ unit cell 8 (at corners) \[\times \frac{1}{8}=1\,atom\] Body centered cubic = 2 atoms/unit cell (8 at comers) \[\times \frac{1}{8}+1\] (at body centre) x 1 = 2 atoms face centered cubic = 4 atom/unit cell = 8 (at corner) \[\times \frac{1}{8}+6\] (at face centres \[\times \frac{1}{2}=4\]atoms face centered tetragonal = 4 atoms per unit cell
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