If 'a' stands for the edge length of the cubic system, sc,bcc,and fcc. Then the ratio of radii of spheres in these system will be respectively.

If a stands for the edge length of a cubic systems simple cubic, body centred and face centred cubic, then ratio of radii of spheres in these systems are.

If 'a' stands for the edge length of the cubic systems: simple cubic, body centered cubic and face centred cubic, then the ratio of radii of the spheres in these systems will be respectively. 2.

If 'a' stands for the edge length of the cubic systems : simple cubic, body centred cubic and face centred cubic, then the ratio of radii of the spheres in these systems will be respectively,

If 'a' stands for the edge length of the cubic systems: simple cubic,body centred cubic and face centred cubic then the ratio of radii of the spheres inthese systems will be respectively,