The lowest frequency is effectively zero and this would be in the extremely low frequency (ELF) band in the sub-radio range of the electromagnetic spectrum.
The energy of EM radiation depends on its frequency, and the lowest frequency corresponds to the lowest energy. Radio waves are at the low end of the energy and frequency spectrum.
The part of the electromagnetic spectrum with the lowest frequency and longest wavelength is radio waves. They are used for communication, broadcasting, and radar.
Extremely low frequency (ELF) radio waves. They can have wavelengths of over 60,000 miles (100,000 km) and frequencies from 3 to 300 Hz.
Electromagnetic waves
The lowest frequency of the electromagnetic spectrum is radio waves. They have wavelengths longer than 1 millimeter and frequencies lower than 300 gigahertz.
That would be sound waves, or the audio spectrum.
Radio waves have a lower frequency than microwaves in the electromagnetic spectrum. They have the lowest frequency and longest wavelengths of all the electromagnetic waves.
The part that we call "Extremely Low Frequency Radio Waves".
the electromagnetic spectrum with the smallest frequency will have the greatest period.In conclusion, because Radio Waves have the lowest frequency they therefore have the greatest period.
Radio waves have the lowest frequency in all of the electromagnetic spectrum. The next higher frequency energy is microwave, visible light including ultraviolet, infrared, X-ray, then gamma ray
Red light.
The electromagnetic spectrum is typically measured in units of frequency (Hz) or wavelength (meters). The frequency ranges from radio waves with the lowest frequencies, to gamma rays with the highest frequencies.