PhysicsThermal expansionJAMB
A rod 1 m long with linear expansivity 2 × 10⁻⁵ K⁻¹ is heated through 100 K. Find its increase in length.
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Answer: B. 2 × 10⁻³ m
ΔL = αLΔθ = 2 × 10⁻⁵ × 1 × 100 = 2 × 10⁻³ m.
An AdmitMe practice question, written for the JAMB syllabus. Not an official past question.