Which of the following unit cell has all the angles at 90˚ but the sides are of unequal length?
A
Triclinic unit cell
B
Monoclinic unit cell
C
Hex clinic unit cell
D
Orthorhombic unit cell
Answer:
The correct option is D. Orthorhombic unit cell
Note
The orthorhombic unit cell may be regarded as something like a shoebox in which the angles are all 90˚ but the sides are of unequal length. It usually possesses several mirror planes of symmetry and several twofold axes.