36. The lattice parameters of an orthorhombic crystal are 2Å, 3Å and 4Å,
respectively. The interplanar spacing between the consecutive (110) plane is:
(a) 3.66Å
(b) 2.66Å
(c) 1.66Å
(d) 0.66Å
37. The lattice parameters of an orthorhombic crystal are 2Å, 3Å and 4Å,
respectively. The interplanar spacing between the consecutive (111) plane is:
(a) 4.54Å
(b) 3.54Å
(c) 2.54Å
(d) 1.54Å
38. The lattice parameters of a hexagonal crystal are a = b = 4Å, and c = 6Å,
respectively. The interplanar spacing between the consecutive 10 10
ð
Þplane is:
(a) 3.46Å
(b) 4.46Å
(c) 5.46Å
(d) 6.46Å
39. The lattice parameters of a hexagonal crystal are a = b = 4Å, and c = 6Å,
respectively. The interplanar spacing between the consecutive 1100
ð
Þplane is:
(a) 0.66Å
(b) 1.66Å
(c) 2.66Å
(d) 3.66Å
40. The lattice parameters of a hexagonal crystal are a = b = 4Å, and c = 6Å,
respectively. The interplanar spacing between the consecutive 11 20
ð
Þplane is:
(a) 4.00Å
(b) 3.00Å
(c) 2.00Å
(d) 1.00Å
41. The lattice parameter of an ideal rhombohedrdron is 3Å. The interplanar
spacing between the consecutive (100) plane is:
(a) 5.45Å
(b) 4.45Å
(c) 3.45Å
(d) 2.45Å
4.5 Zone and Zone Axis
175