If a be the edge length of the unit cell and r be the radius of an ato – InterviewSolution

1.	If a be the edge length of the unit cell and r be the radius of an atom, then for fcc arrangement, the correct relation is
Answer» `4A = sqrt( 3) R` `4r = sqrt( 3) . a ` `4r = sqrt( 2) a ` ` 4 r = ( a)/( sqrt( 2))` ANSWER :C

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