JAMB Physics 2007 Objective — Question 38
Question 38 of 50 from the Joint Admissions and Matriculation Board (JAMB) Physics 2007 Objective paper, with the correct answer and a full explanation.
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A reservoir 500m deep is filled with a fluid of density 850kgm-3. If the atmospheric pressure is 1.05x10^5 Nm-2, the pressure at the bottom of the reservoir is [g=10ms-2]
- A. 4.36x10^6 Nm-2Correct
- B. 4.25x10^6 Nm-2
- C. 4.72x10^6 Nm-2
- D. 4.28x10^6 Nm-2
Explanation
P = h.rho.g + atmospheric pressure = (500 x 850 x 10) + 1.05x10^5 = 4.355x10^6 Nm-2 (approx 4.36x10^6 Nm-2).
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