Final answer:
Radio waves produce the lowest energy photons as they have the longest wavelengths in the electromagnetic spectrum.Option A is the correct answer.
Step-by-step explanation:
The source that produces the lowest energy photons among the options given is radio waves. The energy of a photon is inversely proportional to its wavelength. The longer the wavelength, the lower the energy of the photon. Since the radio waves have the longest wavelengths in the electromagnetic spectrum compared to X-rays, infrared radiation, and gamma rays, they naturally have the least energy.
It is important to note that gamma rays have the most energy and the shortest wavelength, while X-rays follow next in energy level but have a longer wavelength than gamma rays. Therefore, radio waves have the least energy and longest wavelength in comparison to other types of electromagnetic radiation mentioned, such as infrared radiation and X-rays.
Radio waves are characterized by long wavelengths in the electromagnetic spectrum, resulting in the lowest energy photons. Photons carry energy, and their energy is inversely proportional to wavelength. In radio waves, the extended wavelength corresponds to lower frequency and energy. These waves are widely used in communication due to their ability to travel long distances with minimal interference. The low energy of radio wave photons is advantageous for various applications, including broadcasting, telecommunications, and radar systems, where their specific properties suit long-range and non-destructive transmission.