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Copper has face centred cubic (fc c) lat...

Copper has face centred cubic `(fc c)` lattice with interatomic spacing equal to `2.54 Å`. The value of the lattice constant for this lattice is

A

`1.27 Å`

B

`5.08Å`

C

`2.54 Å`

D

`3.59Å`

Text Solution

Verified by Experts

The correct Answer is:
D
`sqrt(2)a=4r`
`implies a=(4r)/(sqrt(2))(2r) =sqrt(2)xx2.54=3.59 Å`
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