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4 November, 18:54

The period of a 440 Hertz sound wave is __ seconds.

A. 1/440

B. 1/220

C. 220

D. 440

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Answers (1)
  1. 4 November, 19:16
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    The formula relating frequency and period of a wave is simply frequency = 1 / time. Therefore, by rearranging we also see that time = 1 / frequency. The period of a 440 Hertz sound wave is 1 / 440 seconds. The speed of the wave can also be determined very simply using the formula speed = wavelength x frequency.
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