Chapter 5.1, Problem 5.1CC

Interpretation Introduction

Interpretation:

Among the two barometers having mercury and water, the barometer that have a higher column of liquid has to be given and explained

Concept Introduction:

Pressure is coined as the force exerted per unit area of surface and is given by the below formula as,

$\text{Pressure = }\frac{\text{Force}}{\text{Area}}$

The SI unit of pressure is Pascal (Pa).

In a barometer or manometer, the pressure ‘P’ and the height ‘h’ of the liquid column is related as,

$\text{P = gdh}$

Where,

P is the pressure

g is the acceleration due to gravity

h is the height of the liquid column

d is the density of liquid column