![A U-tube is partially filled with water. Oil, which does not mix with water, is next poured into one side until water rises by 25 cm on the other side, if the A U-tube is partially filled with water. Oil, which does not mix with water, is next poured into one side until water rises by 25 cm on the other side, if the](https://www.vedantu.com/question-sets/83b9f8d0-6e4c-4fa3-af54-7034453eb1ce4259197814963380485.png)
A U-tube is partially filled with water. Oil, which does not mix with water, is next poured into one side until water rises by 25 cm on the other side, if the
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![Physics Reference: A U-tube closed at one end contains mercury. Air at a pressure of 5.0×104 Pa is trapped at the closed end. Physics Reference: A U-tube closed at one end contains mercury. Air at a pressure of 5.0×104 Pa is trapped at the closed end.](https://1.bp.blogspot.com/-sQ67hJG5lKA/XdwWnsUim1I/AAAAAAAAKoU/vLPuFGYTQo41_Gcms-ZuTRAOnuV2tNZ4wCLcBGAsYHQ/s1600/nov2015p11q19-u-tube-pressure-piston.png)