What is the unit of frequency?
Correct answer: D. Hertz
- A. 1/Hertz
- B. 1/ second2
- C. Second
- D. Hertz
Explanation
Frequency is the number of occurrences of a repeating event per unit of time. The unit of frequency is Hertz (Hz), which is defined as one cycle per second. This means that if an event repeats itself once every second, its frequency is 1 Hz. If it repeats itself twice every second, its frequency is 2 Hz, and so on.
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About Waves
Progressive waves transfer energy through oscillations, with wavelength, frequency, amplitude and wave speed related by v = fλ; sound speed depends on the medium. Superposition produces interference and stationary waves in strings and organ pipes, while simple harmonic motion describes the oscillation itself and must be distinguished from wave propagation.
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