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Find the correct formula regarding relation between density, mass, edge length and number of atoms in a unit cell of crystal lattice.
(a) \( d=\frac{M}{a^{3} N_{A}} \)
(b) \( a=\left[\frac{Z M}{N_{A} d}\right]^{\frac{1}{2}} \)
(c) \( a=\left[\frac{Z \cdot M}{N_{A} \cdot d}\right]^{\frac{1}{3}} \)
(d) None of these
\( \mathrm{P} \)
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