What is the shape of the graph between the pressure and speed of sound in a gaseous medium ?

Explanation

To determine the shape of the graph between pressure and the speed of sound in a gaseous medium, we can follow these steps:

### Step 1: Understand the relationship between speed of sound, pressure, and density
According to Newton's formula, the speed of sound \( v \) in a gaseous medium is given by the equation:
\[ v = \sqrt{\frac{p}{\rho}} \]
where \( p \) is the pressure and \( \rho \) is the density of the gas.
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