A cuboid $ABCDEFGH$ is anisotropic with $\alpha_x = 1 × 10^{-5} /^o C$, $\alpha_y = 2 × 10^{-5} /^o C$, $\alpha_z = 3 × 10^{-5} /^o C$. Coefficient of superficial expansion of faces can be
A cuboid $ABCDEFGH$ is anisotropic with $\alpha_x = 1 × 10^{-5} /^o C$, $\alpha_y = 2 × 10^{-5} /^o C$, $\alpha_z = 3 × 10^{-5} /^o C$. Coefficient of superficial expansion of faces can be
- A
$\beta_{ABCD} = 5 × 10^{-5} /^o C$
- B
$\beta_{BCGH} = 4 × 10^{-5} /^o C$
- C
$\beta_{CDEH} = 3 × 10^{-5} /^o C$
- D
$\beta_{EFGH} = 2 × 10^{-5} /^o C$
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