An Open U-Tube Has Water to a Height H on Both

An open U-tube has water to a height h on both sides, as shown. The cross-sectional area of the left-hand tube is A₁ = 1.50 cm², and that of the right-hand tube is A₂ = 0.50 cm². A light oil (which does not mix with water) with a density of 0.83 g/cm³ is added to the right-hand side. When equilibrium is reached, which of the following is correct?

A) The level on the right-hand side is higher than that on the left.
B) The level on the right-hand side is lower than that on the left.
C) The levels of the two sides are the same.
D) The difference in the heights depends on A₁ and A₂.
E) None of these is correct.

Correct Answer:

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