If 'Z' is the number of atoms in the unit cell that represents the closest packing sequence... ABC ABC ...... the number of tetrahedral voids in the unit cell is equal to:
A)Z
B)2Z
C)Z/2
D)Z/4
Correct Answer:
B
Solution :
[b] 2z No. of tetrahedral voids\[=\text{ }2\times No\]. of atoms in the packing \[=2\times z=2z\]