Question

In the face centered cubic unit cell ,the closest packed layers are perpendicular to__________.

• A. the face of the unit cell
• B. the face diagonal of the unit cell
• C. edges of the unit cell
• D. the body diagonal of the unit cell

Answer 1

Answer: (A)

the face of the unit cell

From the figure, we can be seen that in a face centered cubic unit cell, the closest packed layers are perpendicular to the face of the unit cell.