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In face -centered cubic unit cell, edge ...

In face -centered cubic unit cell, edge length is

A

`(4)/(sqrt(3))r`

B

`(4)/(sqrt(2))r`

C

`2r`

D

`(sqrt(3))/(2)`

Text Solution

Verified by Experts

The correct Answer is:
2
In a face-centered cubic unit cell the sphere at the face centre is in touch with the other two spheres diagonally arranged at the corners.Therefore
`sqrt(2)a=4r`
or `a=(4)/(sqrt(2))r`
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