Consider a cube containing 'n' unit cell of a cubic system . A plane ABCD obtained by joining the mid point of the edges on one of its identical faces had atoms arranged as shown . Let p be the paking fraction . Choose the correct option :

Consider a cube containing 'n' unit cell of a cubic system . A plan

1.	Consider a cube containing 'n' unit cell of a cubic system . A plane ABCD obtained by joining the mid point of the edges on one of its identical faces had atoms arranged as shown . Let p be the paking fraction . Choose the correct option :
Answer» N = 1 , p = `(22)/(21sqrt2)` n= 8 , p = `(11)/(21)` n = 8 , p = `(11)/(14)` n=1 , p =`(11sqrt3)/(28)` Answer :B