A composite rod made of copper (1.8×10^(-5) K^(-1)) and steel (α=1.2×10^(-5) K^(-1)) is heated. Then ___________

A composite rod made of copper (1.8×10^(-5) K^(-1)) and steel (α=1.2×10^(-5) K^(-1)) is heated. Then ___________

(a) It bends with steel on concave side

(b) It bends with copper on concave side

(c) It does not expand

(d) Data is insufficient

A composite rod made of copper (1.8×10^(-5) K^(-1)) and steel (α=1.2×10^(-5) K^(-1)) is heated. Then ___________

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