Is it true that waves per second and cycles per second refer to the same phenomenon?

Waves per second and cycles per second indeed refer to the same phenomenon, which is the frequency of a wave. Frequency is a measure of how many cycles of a wave pass a point in one second, and it is expressed in Hertz (Hz). Essentially, when we say that a wave has a frequency of, say, 5 Hz, it means that 5 cycles of the wave occur each second. This interchangeability is a fundamental concept in understanding wave behavior in various fields, including radar and telecommunications.

Other options suggest limitations or conditions under which the terms might differ or not apply, but the truth is that frequency universally signifies the same measurement of wave oscillations, irrespective of the context in which it is applied, including radar technology. Therefore, the understanding that waves per second and cycles per second are synonymous highlights a fundamental aspect of wave physics.