The speed of a wave is 400 m/s and its wavelength is 10 meters. What is the frequency of the wave?

4 Hz

0.4 Hz

40 Hz

4000 Hz

1 answer

The formula to calculate the frequency of a wave is:

frequency = speed / wavelength

So in this case, the frequency would be:

frequency = 400 m/s / 10 m = 40 Hz

Therefore, the correct answer is 40 Hz.