Question

Which of the following formulae is used to find edge length of bee unit cell?

Options

• `"4r"/sqrt3`

• `sqrt3/"4r"`

• `sqrt("4r"/3)`

• `sqrt8 "r"`

Answer 1

`"4r"/sqrt3`

Explanation:

Relation between edge length (a) and radius (r) in BCC is given by

a = `"4r"/sqrt3`