Question

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?

Answer 1

The frequency of 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.