The maximum ra dius of sphere that can be fitted in the octahedral hole of cubical closed packing of sphere of raius `r` is

Options

A. `0.155 r_(A)`
B. `0.125 r_(A)`
C. `0.414 r_(A)`
D. `0.732 r_(A)`

Answer

c

Explanation

For octahedral void
`(r_(B))/(r_(A)) = 0.414` or,
`r_(B) = 0.414 r_(A)`