A cuboid ABCDEFGH is anisotropic with αₓ = 1 × 10^{-5} /^o C , αy = 2 × 10^{-5} /^o

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10-1.Thermometry, Thermal Expansion and Calorimetry

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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

$\beta_{EFGH} = 2 × 10^{-5} /^o C$

Solution

Coefficient of superficial expansion of face $\mathrm{CDEH}=\alpha_{x}+\alpha_{y}=3 \times 10^{-5} /^{\circ} \mathrm{C}$

Standard 11

Physics

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