Question

Assign the Bravais lattice type of the following unit cell structure.

• A. Cubic I
• B. Orthorhombic I
• C. Tetragonal I
• D. Monoclinic

Answer 1

Answer: (C)

Tetragonal I

Answer 2

In the given lattice the relation between the sides is $a=b\ne c,$ ,and the angles are all $90^{\circ} i.e \alpha=\beta=\gamma=90^{\circ}.$ Also
it is a body- centered lattice i.e. The Bravais notation is I.
$\therefore$ The Bravais lattice is Tetragonal-I