Question

Name the three radios, their frequency ranges, and what they look like.

Answer 1

AM radio signals operate at low frequencies, FM radio signals have a constant amplitude and varying frequency, and cell phone signals operate at higher frequencies.

Step-by-step explanation:

The three types of radios are AM radio, FM radio, and cell phone signals. AM radio signals operate in the frequency range of 540 to 2830 kHz and can travel long distances due to their low frequency and long wavelength. FM radio signals are used in the frequency range of 87.5 to 108.0 MHz, and they have a constant amplitude but varying frequency. Cell phone signals operate at much higher frequencies, such as 1.90 GHz.