TIb_RadioWaves





For the two images shown on this page, which one has a steady frequency and a changing amplitude?
 * A: The wave labeled "AM" has a steady frequency and a changing amplitude.
 * B: The wave labeled "FM" has a steady frequency and a changing amplitude.
 * C: Wait! Both waves have a steady frequency and a changing amplitude.
 * D: Wait! Neither wave has a steady frequency and a changing amplitude.

media type="custom" key="13481148"