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JAMB Physics 2002 Question 8

Question 8

Pressure

The hydrostatic blood pressure difference between the head and feet of a boy standing straight is 1.65 × 104 Nm−2. Find the height of the boy. [Density of blood = 1.1 × 103 kgm−3, g = 10ms−2]

  1. A.0.6m
  2. B.0.5m
  3. C.2.0m
  4. D.1.5m
Show the answer and explanation

Answer: D (1.5m)

Explanation

h = P/(ρg) = 1.65 × 104 ÷ (1.1 × 103 × 10) = 1.5 m.