A bcc lattice is made up of hollow spheres of `B`. Spheres of solids `A` are present in hollow spheres of `B`. The radius of `A` is half of the radius of `B`. The ratio of total volume of spheres of `B` unoccupied by `A` in a unit cell and volume of unit cell is `A xx (pisqrt(3))/(64)`. Find the value of `A`.
A
`(7sqrt(3pi))/(64)`
B
`(7sqrt(3))/(128)`
C
`(7.pi)/(24)`
D
None of these
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The correct Answer is:
D
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