JAMB Physics 2014 Objective — Question 20
Question 20 of 50 from the Joint Admissions and Matriculation Board (JAMB) Physics 2014 Objective paper, with the correct answer and a full explanation.
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A glass bottle of initial volume 2×10⁴cm³ is heated from 20°C to 50°C. If the linear expansivity of glass is 9×10⁻⁶K⁻¹, the volume of the bottle at 50°C is
- A. 20 005.4 cm³
- B. 20 008.1 cm³
- C. 20 013.5 cm³
- D. 20 016.2 cm³Correct
Explanation
V2=V1(3αΔθ+1) = 2×10⁴(3×9×10⁻⁶×30+1) = 2×10⁴(1.00081) = 20,016.2cm³.
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