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Following figure shows an FCC unit cell ...

Following figure shows an FCC unit cell with atoms of radius r marked 1 (corner),2 (face center),3 (face center). A quadrillateral is also shown by joining the centers of 4 face centered atoms. The distances between atoms 1 `&` 2,2, `&` 3 and `1 & 3`.

A

`2r,2r,2sqrt(3)r`

B

`2 sqrt(3)r,2r,r`

C

`r,2r,2sqrt(3)r`

D

`r,2r,3r`

Text Solution

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The correct Answer is:
A
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