Consider the bcc unit cells of the solids 1 and 2 with the position of atoms as shown below.
Channel: Doubtnut
Date: 2020-07-12

Consider the bcc unit cells of the solids 1 and 2 with the position of atoms as shown below. The radius of atom B is twice that of atom A. the unit cell edge length is `50%` more in soild 2 than in 1 . What is the approximate packing efficiency in solid 2?