An ocean wave has a frequency of 0.125 Hz. What is its period?

Answer

B. Wave A has the higher frequency. Its frequency is 25 Hz.

Explanation

Frequency is the number of oscillation/revolutions in a unit time. On the other hand, period is the time taken to complete one oscillation/revolution.

From the definition above we can conclude that, frequency(f) is the reciprocal of period(T). That is;

f = 1/T and

T = 1/f

Wave A

f = 1/(4/100)

= 100/4

= 25 Hz

Wave B

f = 1/(1/7)

= 7/1

= 7 Hz

So, wave A has the higher frequency. Its frequency is 25 Hz.

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