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

If 'a' stands for the edge lenth of the cubic systems : simple cubic ,

1.	If 'a' stands for the edge lenth of the cubic systems : simple cubic ,body centred cubic and face centred cubic, then the ratio of the radii of the spheres in these systems will be respectively
Answer» `1/2 a : SQRT3/4 a : 1/(2SQRT2) a` `1/2 a : sqrt3 a : 1/sqrt2 a ` `1/2 a : sqrt3/2 : sqrt2/2 a ` ` 1a : sqrt3 a : SQRT a ` Answer :C