Answer: 2.5metres
Step-by-step explanation:
Wavespeed V = 350 m/s
Frequency = 140 Hz.
Wavelength = ?
Since, the wavelength is the distance covered by the wave in one complete cycle. It is measured in metres, and represented by the symbol λ.
So, apply the formula:
Velocity (V) = Frequency F x wavelength λ
350m/s = 140Hz x λ
λ = 350m/s / 140Hz
λ = 2.5 m
Thus, the wavelength of a wave is 2.5metres