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How many lattice points are there in one...

How many lattice points are there in one unit cell of each of the following lattice ?
(i) Face - centred cubic `" "` (ii) Face-centred tetragonal `" "` (iii) Body-centered

Text Solution

Verified by Experts

(i) Lasttice point in face-centred cubic lattice = 8(at corners) + 6(at the face centre) = 14
(ii) Face centred tetragonal = 8(at corners) + 6(at the face centre) = 14
(iii). Lattice points in body-centred cube = 8(at corners) + 1 (at the body centre) = 9.
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