A 2MHz wave would have a longer wavelength than a 56Hz wave. This is because wavelength and frequency are inversely proportional - higher frequency waves have shorter wavelengths and lower frequency waves have longer wavelengths.
Wavelength at 2 MHz = 149.896 meters Wavelength at 56 Hz = 5,353.437 meters Lower frequency --> longer wavelength. Higher frequency --> shorter wavelength When you multiply (frequency) times (wavelength), the result is always the same number.
The waves with a 2 MHz frequency would have a longer wavelength compared to waves with a 56 Hz frequency. Wavelength is inversely proportional to frequency, so as frequency increases, the wavelength decreases.