Physics · Oct / Nov 2020 · Paper 11 · Question 13
5054Pressure
A mercury manometer is used to measure the pressure of a gas. The pressure of the atmosphere is p0 and the density of mercury is ρ. What is the pressure of the gas?
- Ap0 – hρg
- Bp0 + hρg
- Cp0
- Dhρg
As printed in the paper
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Correct answer: A. p0 – hρg
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