EVERYDAY SCIENCE

Detailed explanation-1: -Extremely low frequency (ELF) is the ITU designation for electromagnetic radiation (radio waves) with frequencies from 3 to 30 Hz, and corresponding wavelengths of 100, 000 to 10, 000 kilometers, respectively.

Detailed explanation-2: -Radio waves, on the other hand, have the lowest energies, longest wavelengths, and lowest frequencies of any type of EM radiation. In order from highest to lowest energy, the sections of the EM spectrum are named: gamma rays, X-rays, ultraviolet radiation, visible light, infrared radiation, and radio waves.

Detailed explanation-3: -ELF radio waves, the lowest of all radio frequencies, have a long range and are useful in penetrating water and rock for communication with submarines and inside mines and caves. The most powerful natural source of ELF/VLF waves is lightning, according to the Stanford VLF Group.

Detailed explanation-4: -The gamma rays would have a shorter wavelength and a lower energy than radio waves. The radio waves would have a longer wavelength and travel the same speed as gamma rays. The gamma rays would have a lower frequency and travel the same speed as gamma rays.

Detailed explanation-5: -Radio Waves–The waves in the electromagnetic spectrum that have the longest wavelengths and lowest frequency are called radio waves.