Final answer:
You hear sounds from a radio through radio waves, which are part of the electromagnetic spectrum with lower frequency and longer wavelength than visible light. Compton scattering involves the use of X-rays due to their high energies and frequency.
Step-by-step explanation:
When you listen to the radio, you are hearing sounds that are produced by radio waves. Radio waves are a type of electromagnetic radiation that falls at the low-frequency and long-wavelength end of the electromagnetic spectrum. This is distinctly different from visible light, which has a much shorter wavelength and higher frequency, and from X-rays, which have even shorter wavelengths and higher frequencies than visible light. In Compton scattering, which is a phenomenon related to how X-rays interact with matter, X-rays are used because of their high energies and penetrating abilities, being classified under high frequency waves.