The plane or face (mark by 1, 2, 3, 4, 5) along the lattice is shown in Figure 2. The relationship of the plane or face and the lattice is described in the Bravais Law.

(i) Explain the Bravais Law.

(ii) The planes or faces along the lattice are shown here (Figure 2). Which faces or plane is the more and the less common to be developed along the lattice plane. State your reasons.

Answer the question as soon as possible. Thanks

1 4 3 5 2 5 3 4 Figure 2 / Gambarajah 2