10 A crystal has a coefficient of linear expansion \(13 times 10^{-7} /^{o}C\) in one direction and \(231 times 10^{-7} /^{o}C\) in every direction perpendicular to it. The coefficient of cubical expansion is

\(462 times 10^{-7} /^{o}C\)

\(462 times 10^{-7} /^{o}C\)

0%

\(244 times 10^{-7} /^{o}C\)

\(244 times 10^{-7} /^{o}C\)

50%

\(475 times 10^{-7} /^{o}C\)

\(475 times 10^{-7} /^{o}C\)

50%

\(257 times 10^{-7} /^{o}C\)

\(257 times 10^{-7} /^{o}C\)

0%