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A simple U tube contains mercury to the ...

A simple U tube contains mercury to the same level in both of its arms. If water is poured to a height of 13.6 cm in one arm, how much will be the rise in mercury level in the other arm ?
Given : density of mercury = `13.6 xx 10^3 "kg m"^(-3)` and density of water = `10^3 "kg m"^(-3)`.

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1 cm
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