Answer: 25Hz
Explanation:
Given that:
Wavelength (λ) = 0.4m (the distance between the peaks of a wave is known as wavelength)
Frequency F = ?
Speed of wave V = 10 m/s
The wave frequency is the number of cycles which the wave complete in one second. It is measured in hertz, and represented by the symbol F
So, apply the formula V = F λ
10m/s = F x 0.4m
F = 10m/s / 0.4m
F = 25Hz
Thus, the frequency of the wave is 25 Hertz.
