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Semiconductor Electronics question

2002 · Q148
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Semiconductor Electronics question

2002 · Q148

NEETPhysicsSemiconductor ElectronicsMCQ+4 / −1
Number of atom per unit cell in B.C.C.
  1. A
    9
  2. B
    4
  3. C
    2
  4. D
    1
View written solutionFree

Correct answer: C

In body-centred cubic (b.c.c.) lattice there are eight atoms at the corners of the cube and one at the centre.

Therefore number of atom per unit cell

= 18×8{1 \over 8} \times 881​×8 + 1 = 2

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