which we started. This confirms the validity of Eqs. 5.54 and 5.56. This also shows
that for [222] direction, both crystal systems have identical indices. Using these
equations, a one to one correspondence of other Miller indices can be obtained.
Multiple Choice Questions (MCQ)
1. The equivalent rhombohedral plane for the (111) fcc plane is:
(a) (111)
(b) ð 111Þ
(c) ð1 11Þ
(d) ð11 1Þ
2. The equivalent rhombohedral plane for the ð11 1Þfcc plane is:
(a) (110)
(b) (100)
(c) (101)
(d) (001)
3. The equivalent rhombohedral plane for the (200) fcc plane is:
(a) (100)
(b) (101)
(c) (110)
(d) (011)
4. The equivalent hexagonal plane for the (110) orthorhombic plane is:
(a) ð1 100Þ
(b) ð 1010Þ
(c) ð10 10Þ
(d) ð01 10Þ
5. The equivalent hexagonal plane for the (110) orthorhombic plane is:
(a) ð1 100Þ
(b) ð 1010Þ
(c) ð10 10Þ
(d) ð01 10Þ
6. The equivalent HCP plane for the ð10 1Þ rhombohedral plane is:
(a) ð1 100Þ
(b) ð11 20Þ
(c) ð1 210Þ
(d) ð 2110Þ
202
5 Unit Cell Transformations