In communicating vessels of any shape, a stationary liquid of the same density will always settle at the same horizontal level. This happens because the pressure at any given depth in a liquid depends only on the height of the liquid column (
The surfaces settle at the same horizontal level, regardless of the vessels' shapes or widths. voprosy paragraf23 avtor peryshkin 7 klass
If you pour liquids with different densities (like water and oil) into the vessels, the heights will be different. The liquid with the lower density will have a higher column, following the formula: In communicating vessels of any shape, a stationary
Here are the typical questions and answers found at the end of Paragraph 23: In communicating vessels of any shape