Q. A metal has bcc structure and the edge length of its unit cell is $3.04\ \mathring{\mathrm{A}}$. The volume of the unit cell in $cm^{3}$ will be
A) $1.6 \times 10^{21}{\ cm}^{3}$
B) $2.81 \times 10^{- 23}{cm}^{3}$
C) $6.02 \times 10^{- 23}{\ cm}^{3}$
D) $6.6 \times 10^{- 24}\ {cm}^{3}$
Explanation
(b)
Volume of unit cell $(V) = a^{3}$
$= \left( 3.04 \times 10^{- 8} \right)^{3}$
$= 2.81 \times 10^{- 23}{cm}^{3}$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.