In face centred cubic unit cell, what is the volume occupied ?

Options

A. `4/3 pir^(3)`
B. `8/3 pir^(3)`
C. `16/3 pir^(3)`
D. `(64 r^(3))/(3sqrt(3))`

Answer

C

Explanation

`16/3 pir^(3)`
Volume occupied by 1 unit cell = z × volume of 1 atom z = number of atom. in 4 fcc = Z = 4
`therefore` Volume will be `= 4 xx 4/3pir^(3) = (16pir^(3))/3`.