In terms of energy, how does electromagnetic radiation rank from lowest to highest?

The correct ranking of electromagnetic radiation in terms of energy from lowest to highest is based on the frequency and wavelength of the electromagnetic waves. In general, the higher the frequency of the electromagnetic waves, the more energy they carry.

Radio waves have the longest wavelength and the lowest frequency, and thus they carry the least energy. Infra-red radiation comes next, as it has a shorter wavelength than radio waves and thus carries more energy. Microwaves follow infra-red, with even higher frequency and energy. Finally, gamma rays have the shortest wavelength and the highest frequency, meaning they possess the highest energy among these forms of electromagnetic radiation.

Option B accurately reflects this order: radio waves, infra-red, microwaves, and gamma rays. Understanding the relationship between wavelength, frequency, and energy is essential when sorting types of electromagnetic radiation.