Anything in the range of something like 1 millimeter to 5,000 kilometers
is called a radio wave.
Short wavelength
The wavelength of waves decreases as you move from radio waves to gamma rays on the electromagnetic spectrum. Radio waves have long wavelengths, while gamma rays have short wavelengths. This progression in wavelength corresponds to an increase in energy and frequency.
Radio waves have a far longer wavelength than visible light. The radio waves that do the cooking in your microwave oven are as long as roughly 310,000 waves of blue light placed end-to-end. The radio waves transmitted by an AM station at 1400kHz on your AM dial are roughly 550 billion times as long as blue-light waves.
"radio waves" have longest wavelength..
The longest wavelength in the electromagnetic spectrum is radio waves. They have wavelengths ranging from about 1 millimeter to over 100 kilometers.
for wavelength, the longer of the two is visible light, but the longest type of rays are radio waves (some of them have a wavelength as long as a football field)
As far as visible spectral lines are concerned, red has the largest wavelength. If we consider electromagnetic spectrum, then radio waves could be considered as longer wavelengths. Even longer are long waves.
aids
In the electromagnetic spectrum, it is the radio wave that has the longest wavelength. Some radio waves are over 100 yards long.
The signal with the longest wavelength is radio waves. They have wavelengths ranging from meters to kilometers.
Two types of waves based on wavelength are ultraviolet waves with short wavelengths and radio waves with long wavelengths. Ultraviolet waves have higher frequencies and carry more energy, while radio waves have lower frequencies and are commonly used for communication.
Neither is nesesarily longer a wave can go on forever. Visible light is more reflective than infared light so it will last longer. If you are talking about wavelength, infared lights wavelength is longer.