The frquency of a sound wave propagating in air is 3000 Hz. The waves were initially in region where `T = 30^(@)C` and then enter in the region where `T = 10^(@)C`. Calculate the percentage change in wavelength.

Explanation

To solve the problem of calculating the percentage change in wavelength of a sound wave as it moves from a region at 30°C to a region at 10°C, we can follow these steps:

### Step 1: Understand the relationship between temperature, velocity, and wavelength
The speed of sound in air is affected by temperature. The formula for the speed of sound \( V \) in air is given by:
\[ V = k \sqrt{T} \]
where \( T \) is the absolute temperature in Kelvin, and \( k \) is a constant.

### Step 2: Convert temperatures from Celsius to Kelvin
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