CAPE Physics Unit 1 · 2011 · Paper 1 · Question Q41
Item 41 refers to the following diagram.
In the U-tube manometer shown above, the pressure at X is atmospheric pressure (p_A) and the liquid in the tube has a density of \rho. The pressure at Y is equal to the pressure, p, of the gas. The gas pressure p is equal to
- (A)
p_A + h\rho g - (B)
p_A - h\rho g - (C)
h\rho g - (D)
p_A
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