Two liquids of specific gravity 1.2 "and...

Two liquids of specific gravity `1.2 "and" 0.84 ` are poured into the limbs of a U tube until the difference in levels of their upper surfaces is 9 cm . What will be the heights of their respective surface above the common surface in U tube ? What is the pressure at the common surface ? Take `g=10"ms"^(-2)`

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The correct Answer is:

`(30 cm 21cm , 2520"Nm"^(-2))`

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