GENERAL KNOWLEDGE

Detailed explanation-1: -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-2: -Radio waves have the longest wavelength and the lowest level of energy. Gamma rays have the shortest wavelength and the highest level of energy of the EM spectrum.

Detailed explanation-3: -Visible light has a whole spectrum of colours. From the colour red with the longest wavelength (and thus least energy) to the colour violet which has the shortest wavelength (and the highest energy): X-rays are energy rich radiation and can penetrate soft tissue.