Post-UTME Physics 2012 Objective — Question 5
Question 5 of 7 from the Post-UTME Screening (Post-UTME) Physics 2012 Objective paper, with the correct answer and a full explanation.
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A metal cube of volume V and linear expansivity (alpha) is heated through a temperature rise of T. The increase in volume of the cube is
- A. (alpha)VT/3
- B. 2(alpha)VT
- C. 3(alpha)VTCorrect
- D. (alpha)VT
Explanation
Volumetric expansivity is approximately 3 times the linear expansivity, so the volume increase = 3(alpha)VT.
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