Given this definition, it is reasonable that the quantity frequency would have units of cycles/second, waves/second, vibrations/second, or something/second. Another unit for frequency is the Hertz (abbreviated Hz) where 1 Hz is equivalent to 1 cycle/second.
D.) Cycles per second
The correct option is D. The frequency of waves is given in cycles per second. The pace of direction changes in current per second is known as frequency.
The wavelength divided by the wave velocity gives us frequency. As a result, the frequency increases with shorter wavelengths and decreases with longer wavelengths. In other words, the relationship between frequency and wavelength is inverse.
Thus, each second, in cycles. Before we began calling this a hertz in the 1970s, the phrase was widely used. A cycle per second, or cps, equals one Hertz. The 10 kHz or 10K/cps abbreviation for 10,000 hertz.
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