What is an energy wave called that is generated by a transmitter?

The energy wave generated by a transmitter is referred to as a radio wave. Radio waves are a type of electromagnetic radiation with wavelengths in the electromagnetic spectrum ranging from about one millimeter to 100 kilometers. These waves are produced when an electric charge accelerates and are commonly used for communication purposes, such as broadcasting signals from radio and television transmitters.

The transmitter generates radio waves by converting electrical signals into a modulated electromagnetic field. This modulation allows the radio waves to carry information over long distances by bouncing off the ionosphere or propagating along the surface of the Earth. Radio waves can penetrate through various media, making them effective for wireless communications.

In contrast, sound waves are mechanical waves that require a medium (such as air or water) to travel through, which is fundamentally different from the electromagnetic nature of radio waves. Light waves refer to visible electromagnetic radiation, and infrared waves fall within the electromagnetic spectrum but are lower in frequency than visible light. Neither sound waves, light waves, nor infrared waves align with the principles of wave generation used in transmitter technology, thus reinforcing that radio waves are the correct answer.