Ans. The calculations involved in determining the unit cell dimensions depend on the type of unit cell. For example, in a simple cubic unit cell, the edge length (a) can be calculated using the formula:a = (4 * Radius of the atom) / √3In a body-centered cubic unit cell, the edge length (a) can be calculated using the formula:a = (4 * Radius of the atom) / √2Similarly, different formulas are used for other types of unit cells, such as face-centered cubic or hexagonal close-packed unit cells.