A metal has bec structure and the edge length of its unit cell is \...

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A metal has bec structure and the edge length of its unit cell is \( 3.04 \AA \). The volume of the unit cell in \( \mathrm{cm}^{3} \) will be
(a) \( 1.6 \times 10^{-21} \mathrm{~cm}^{3} \)
(b) \( 2.81 \times 10^{-23} \mathrm{~cm}^{3} \)
(c) \( 6.02 \times 10^{-23} \mathrm{~cm}^{3} \)
(d) \( 6.6 \times 10^{-24} \mathrm{~cm}^{3} \)
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