In a barometer, in place of mercury, if water is filled then what will its height?

Explanation

To determine the height of water in a barometer when mercury is replaced by water, we can use the principle of hydrostatic pressure. Here’s a step-by-step solution:

### Step 1: Understand the basic principle
In a barometer, the height of the liquid column is determined by the atmospheric pressure. The pressure exerted by a column of liquid is given by the formula:
\[ P = \rho \cdot g \cdot h \]
where:
- \( P \) is the pressure,
- \( \rho \) is the density of the liquid,
...