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प्रश्न
How many lattice points are there in one unit cell of the following lattice?
Face-centred cubic
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उत्तर
Lattice points in an fcc lattice = 8 corners + 6 face centres
= 14
No. of particles per unit cell = `(8 xx 1/8) + (6 xx 1/2)`
No. of particles per unit cell = 4
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