The relation between atomic radius and edge length 'a' of a body centred cubic unit cell :

In a close-packed body-centred cubic lattice of potassium, the correct relation between the atomic radius ( r) of potassium and the edge length (a) of the cube is -

The distance between the nearest neighbours of a body-centred cubic unit cell is equal to 0.866 times the edge length of the unit cell. What is the relation between the edge length and the radius of the constituent particle of this unit cell?

The radius of the largest shpere which fits properly at the centre of the edge of a body centred cubic unit cell is : (Edge length is represented by 'a')

The radius of the largest shpere which fits properly at the centre of the edge of a body centred cubic unit cell is : (Edge length is represented by 'a')

In face centred cubic unit cell edge length is

In face centred cubic unit cell edge length is