What are the (i) Miller indices of the planes shown in the following unit cells, and their interplanar spacing? Here, the lattice constant a is 0.2 [nm]. Numbers shown in the figure represent intercepts of the plane in terms of lattice parameters. x, y, and z represent crystallographic axes. /24 (3 marks each; 2 marks for the Miller index, and 1 mark for the interplanar spacing) (1) (4) (7) (2) (5) = +.... (8) 0.0 (3) (6) Y Hint: In cubic unit cells, the interplanar spacing of (h k 1) can be calculated by the formula a dnkl h+k+1