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Diamond has face-centred cubic lattice o...

Diamond has face-centred cubic lattice of carbon containing carbon atoms in alternate tetrahedral voids. The ratio of the carbon-carbon bond distance to the edge of the unit cell is

A

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

B

`sqrt((1)/(4))`

C

`1/4`

D

`(1)/(sqrt2)`

Text Solution

Verified by Experts

The correct Answer is:
A
Let .a. be the edge length, body diagonal=`sqrt(3)a=4xxC-C` distance
`(a)/(C-C" distance")=(sqrt3)/(4)`.
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