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












(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.

This was the answer given by merit nation........



HERE WHY ARE WE NOT CONSIDERIN THE FACT.

THAT SAY EACH POINT AT THE CORNER IS SHAIED BY 8 UNIT CELLS........SO THE LATTICE POINT WILL BE ACCORDINGLY A DIFF ANSWER..............?

Answer 1

HERE WHY ARE WE NOT CONSIDERIN THE FACT. THAT SAY EACH POINT AT THE CORNER IS SHAIED BY 8 UNIT CELLS........ SO ...