Radio stations identify themselves by their position on the radio dial such as 90.1 and 93.3. This number is based on the number
of waves or cycles that pass a fixed point in a specific unit of time. To which property of a wave does this identification number refer? A. frequency B. wavelength C. loudness D. amplitude
The answer is A. Reason:<span>The </span><span>frequency of </span><span>waves are determined by the amount of waves that pass a specific point in a certain period of time and Radio stations broadcast their signals at different frequencies so that the range of radio frequencies can be used by many stations.</span>