#### Question

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-centred

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#### Solution

**(i)** There are 14 (8 from the corners + 6 from the faces) lattice points in face-centred cubic.

**(ii)** There are 14 (8 from the corners + 6 from the faces) lattice points in face-centred tetragonal.

**(iii)** There are 9 (1 from the centre + 8 from the corners) lattice points in body-centred cubic

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#### Reference Material

Solution for question: How many lattice points are there in one unit cell of each of the following lattice concept: Concept of Close Packed Structures. For the courses CBSE (Science), CBSE (Arts), PUC Karnataka Science, CBSE (Commerce)