What does the electromagnetic spectrum represent?

The electromagnetic spectrum represents the range of all electromagnetic radiation frequencies. This spectrum encompasses a wide variety of waves, from very low-frequency radio waves to extremely high-frequency gamma rays. Each type of electromagnetic radiation has unique properties and applications, determined by its frequency or wavelength.

For instance, radio waves are used for communication, microwaves in cooking and radar, infrared for thermal imaging, visible light for human perception, ultraviolet for sterilization, X-rays for medical imaging, and gamma rays in cancer treatment. Understanding the electromagnetic spectrum is crucial in various fields, including physics, astronomy, and telecommunications, as it helps to categorize and utilize different types of electromagnetic waves effectively.