An open-ended U-tube of uniform cross-sectional area contains water (density 10³ kg m⁻³). Initially the water level stands at 0.29 m from the bottom in each arm. Kerosene oil (a water-immiscible liquid) of density 800 kg m⁻³ is added to the left arm until its length is 0.1 m, as shown in the schematic figure below. The ratio (h₁/h₂) of the heights of the liquid in the two arms is