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

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

What is the maximum radius of a sphere that can be filled in a tetrahedral void of cubic close packing of spheres of radius R without disturbing the packing?

The number of octahedral sites in a cubical close pack array of N spheres is

The number of octahedral sites in a cubical close pack array of N spheres is

The number of octahedral sites in a cubical close pack array of N spheres is :

Vilume occupied for a cubic close packed lattice of sphere is

Volume occupied for a cubic close packed lattice of sphere is