Electromagnetic waves are a type of wave that can travel through the vacuum of space and do not require a medium. They are created by the movement of charged particles and include a wide range of phenomena such as radio waves, microwaves, infrared radiation, visible light, ultraviolet radiation, X-rays, and gamma rays. These waves are characterized by their wavelength and frequency, which determine their energy and how they interact with matter. Electromagnetic waves play a crucial role in our daily lives, enabling technologies such as radio, television, and cellular communication. They also have significant applications in medicine, such as in X-ray imaging and radiation therapy. Understanding electromagnetic waves is essential for advancements in science and technology.