Two immiscible, stationary liquids of densities ρ1 and ρ2 (ρ2>ρ1) are arranged in a container with the lighter liquid on top. Point P is chosen just above the interface in the lighter liquid and point Q is chosen just below the interface in the heavier liquid, both lying on the same horizontal level. Which relation is true for the pressures pP and pQ at these points?
a) pP<pQ
b) pP=pQ
c) pP=ρ2ρ1pQ
d) Relation cannot be predicted without additional information