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in a mercury barometer we say thatpressure where the tube touches the liquid at its surface and the pressure at the surface is equal to atmosphere pressurewhy we say that pressure at same level is same as in the tube we have mercury outsid the tube we have air

san , 10 Years ago
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anser 1 Answers
Abhishek Kumar

Last Activity: 9 Years ago

At the surface of the mercury, Pressure are equal in the two medium. So, we use this equality to get the inside pressure.

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