Which of the following statements is correct? The reading of pressure on a mercury barometer is independent of

DanielEbuka116

1 year ago

Let's examine each statement to find the correct one:
A. The cross-sectional area of the tube: This is correct. The pressure reading on a mercury barometer is independent of the cross-sectional area of the tube. The pressure exerted by the mercury column is based on its height and density, not the tube's cross-sectional area.
B. The atmospheric pressure: This is incorrect. A mercury barometer is used to measure atmospheric pressure, so its reading depends on the external atmospheric pressure.
C. The density of mercury: This is incorrect. The density of mercury directly affects the height of the mercury column and thus the pressure reading.
D. The temperature of mercury: This is incorrect. The temperature of mercury can affect its density, which in turn affects the height of the mercury column and the pressure reading.
E. The acceleration due to gravity: This is incorrect. The acceleration due to gravity affects the height of the mercury column, which is used to determine the pressure reading.
Therefore, the correct statement is A. The reading of pressure on a mercury barometer is independent of the cross-sectional area of the tube.

Adenigolda

3 years ago

i strongly disagree....

the reading of pressure depends on diameter right....

area cab be coined from diameter formula

so the answe is tempertaure....

note the question said barometer and not thermometer.....

so mecury is independent of tempertaure in barometer

is dependent on temperature in thermometer

Refhord

3 years ago

Please how

skzamani

4 years ago

I agree with it 100%