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Nilanjan Bhowmick AIR 3, CSIR NET (Earth Science)
Sajan sarthak Best Answer
(111) as all the plane cut all the axis at unit distance so 1a,1b,1c ... reciprocal of Weiss parameters are Miller indices (1/1, 1/1 ,1/1) = 111
an octahedron is a polyhedron with eight faces, twelve edges, and six vertices. The term is most commonly used to refer to the regular octahedron, a Platonic solid composed of eight equilateral triangles, four of which meet at each vertex. A regular octahedron is the dual polyhedron of a cube.