Water was poured into one of the communicating vessels, and oil into the other. Which liquid is higher?

In communicating vessels, the pressure of the column of liquid in one vessel is balanced by the pressure of the column in the other.

The density of the oil is less than the density of water, respectively, the pressure exerted by it is less. To balance the pressure of the water column, the oil column must be higher.

Answer: The oil level is higher.



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