A sound wave travelling in water has wavelength 0.4 m.
Is this wave audible in air ? (The speed of sound in water = `1400ms^(-1)`)

Explanation

To determine if the sound wave traveling in water with a wavelength of 0.4 m is audible in air, we need to follow these steps:

### Step 1: Identify the given values
- Wavelength (λ) = 0.4 m
- Speed of sound in water (v) = 1400 m/s

### Step 2: Use the formula to calculate frequency
The frequency (f) of a wave can be calculated using the formula:
...