Your car radio works by using an antenna to pick up radio waves that are transmi

Question

Your car radio works by using an antenna to pick up radio waves that are transmitted through the air. This is one of many common EM waves that we are exposed to every day. The radio station is really designated by the frequency of the wave they are transmitting - so FM radio waves have frequencies between 88 - 108 MHz, whereas, AM radio waves have frequencies between 540 - 1600 kHz. What is similar between these types of radio waves and what is different? Justify your reasoning. (Be sure to address wavelength, speed, and energy in your comparison.)

Explanation / Answer

both signals are electro magnatic radiation

wavelwngth of FM wave is larger than AM wave

wavelength = speed of light / frequency

Energy of AM wave is more than FM wave energy = h x frequency

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