An element crystallises in a face-centred cubic (fcc) unit cell with cell edge a. The distance between the centres of two nearest octahedral voids in the crystal lattice is
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a
a2
b
a
c
a2
d
2a
answer is A.
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Detailed Solution
In FCC ‘octahedral’ voids are at edge centre and body centre both distances of nearest edge centers (or) edge center and body center are a2only