The ratio of height of a mercury column in a barometer at a place to the height of the liquid column at the same place are `1 : 4`. Find the density of the liquid.

Explanation

To solve the problem, we need to find the density of a liquid given the ratio of the height of a mercury column to the height of the liquid column. Here’s a step-by-step solution:

### Step 1: Understand the Problem
We are given the ratio of the height of a mercury column (hm) to the height of another liquid column (hl) as 1:4. This means:
\[ \frac{h_m}{h_l} = \frac{1}{4} \]

### Step 2: Write the Formula for Pressure
The pressure exerted by a liquid column is given by the formula:
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