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Question
Statement 1: A barometric liquid having high density produces a shorter column of liquid
Statement 2: In a mercury barometer, downward pressure of mercury in the column balances the atmospheric pressure
Mark true (T) or false (F).
Statement 1: A barometric liquid having high density produces a shorter column of liquid
Statement 2: In a mercury barometer, downward pressure of mercury in the column balances the atmospheric pressure
Mark true (T) or false (F).
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Solution
The correct option is A TT
We know, pressure = ρ×g×h
where ρ is the density of the liquid (mercury in mercury barometer) and h is the height of the column.
For a constant pressure, as the value of density increases, height will be shortened to have the same pressure. So, statement 1 is true
In a mercury barometer, the pressure due to mercury column is balanced by the atomospheric pressure. The height of mercury column can hence be used to find atmospheric pressure.
We know, pressure = ρ×g×h
where ρ is the density of the liquid (mercury in mercury barometer) and h is the height of the column.
For a constant pressure, as the value of density increases, height will be shortened to have the same pressure. So, statement 1 is true
In a mercury barometer, the pressure due to mercury column is balanced by the atomospheric pressure. The height of mercury column can hence be used to find atmospheric pressure.
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