Physics WAEC

A copper rod, 5m long when heated through 20c, expands by 1mm. If a second copper rod, 2.5m long is heated through 5c, by how much will it expand?

A. 4mm
B. 2mm
C. 0.25mm
D. 0.12mm

Correct Answer: Option C

C. 0.25mm

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6 years ago

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