State Newton's formulas for velocity of sound in air. Point out the error and hence discuss Laplace's correction.

Explanation

### Step-by-Step Solution:

1. **State Newton's Formula for Velocity of Sound in Air**:
Newton proposed that the velocity of sound in air (v) can be expressed as:
\[ v = \sqrt{\frac{E}{\rho}} \]
where \(E\) is the bulk isothermal modulus of elasticity and \(\rho\) is the density of the medium.
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