JEE Advanced 2020 Paper 1

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

h1

h2

) of the heights of the liquid in the two arms is