Which of the following is NOT a characteristic of microwaves?

The correct choice indicates that transmitting audio signals in home theaters is not a characteristic of microwaves. While microwaves are primarily associated with telecommunications, including the transmission of Internet signals and satellite communication, their role in home theaters is limited. Typically, audio signals in home theater systems are transmitted through various forms of wired connections or other wireless technologies, such as Bluetooth or Wi-Fi, rather than relying specifically on microwave transmission.

Microwaves are characterized by their ability to travel relatively long distances, which is why they are effectively used for transmitting Internet signals. They can reach satellites and are practical in areas where running physical wires for an Internet connection may be difficult or impractical. This makes the properties and applications of microwaves vastly different when compared to typical audio signal transmission in consumer electronics, reinforcing the choice regarding home theaters as the correct answer.