21. The equivalent orthorhombic direction for the [211] hexagonal direction is:
(a) [101]
(b) [011]
(c) [112]
(d) [211]
22. The equivalent HCP direction for the [111] rhombohedral direction is:
(a) [1000]
(b) [0001]
(c) [0100]
(d) [0010]
23. The equivalent HCP direction for the [330] rhombohedral direction is:
(a) ½21 32Š
(b) ½1 322Š
(c) ½12 32Š
(d) ½ 3212Š
24. The equivalent trigonal direction for the ½21 30Š hexagonal direction is:
(a) ½01
1Š
(b) ½ 101Š
(c) ½1 10Š
(d) ½10 1Š
25. The equivalent trigonal direction for the ½21 33Š hexagonal direction is:
(a) [432]
(b) [423]
(c) [234]
(d) [243]
26. The equivalent bcc direction corresponding to its primitive [200] direction is:
(a) ½1 11Š
(b) ½11 1Š
(c) ½ 111Š
(d) [111]
27. The equivalent bcc direction corresponding to its primitive [220] direction is:
(a) [200]
(b) [220]
(c) [020]
(d) [022]
5.3 Transformation of Indices of Direction (Zone Axes)
205