1.

If the body-centered unit cell is assumed to be a cube of edge length a with spherical particles of radius r then how is the diameter, d of particle and surface area, S of the cell related?

A. S = 32d<sup>4</sup>/3
B. S = 2d<sup>2</sup>
C. S = 4d<sup>2</sup>
D. S = 8d<sup>2</sup>
Answer» E.


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