JAMB Physics 2012 Objective — Question 16
Question 16 of 50 from the Joint Admissions and Matriculation Board (JAMB) Physics 2012 Objective paper, with the correct answer and a full explanation.
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An object of volume 1m³ and mass 2kg is totally immersed in a liquid of density 1 kgm⁻³. Calculate its apparent weight. [g≈10ms⁻²]
- A. 20N
- B. 10NCorrect
- C. 2N
- D. 1N
Explanation
Weight = mg = 2×10 = 20N. Upthrust = ρVg = 1×1×10 = 10N. Apparent weight = Weight−Upthrust = 20−10 = 10N.
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