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25 May, 20:52

The period of a certain wave is 20 seconds. What is the frequency of this wave? 0.05 waves/sec 10 waves/sec It depends on the medium. It depends on the speed of the wave.

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  1. 25 May, 20:58
    0
    'Period' and 'frequency' are reciprocals.

    Either one is (1 / the other one).

    If the period is 20seconds, then the frequency is 1 / (20 seconds)

    = 0.05 per second

    = 0.05 Hz.
  2. 25 May, 21:09
    0
    'Period' and 'frequency' are reciprocals.

    Either one is (1 / the other one).

    If the period is 20seconds, then the frequency is 1 / (20 seconds)

    = 0.05 per second

    = 0.05 Hz
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