Question

In face centred cubic lattice, a unit cell is shared equally by how many unit cells?

• A. $6$
• B. $4$
• C. $2$
• D. $8$

Answer 1

The correct option is A $6$

$\begin{array}{c}\text{In unit cell, faces are common for two unit cells}\\ \text{Hence, number of faces of a unit cell equals the number}\\ \text{of unit cells shared by a single cell.}\\ \text{Hence, A}\text{is correct}\end{array}$