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===Equation===
====Equation 1====''NB: You do not need to remember these equations this equation but you should know how to find [[frequency]] given the number of waves passing [[time]] taken for one [[wave]] to pass a point and the time taken.''
Frequency = 1/(Period)
====Equation 2====
''NB: You do not need to remember this equation but you should know how to find [[frequency]] given the number of [[wave]]s passing a point and the [[time]] taken.''
Frequency = (Number of Waves which pass a point)/(Time taken for waves to pass a point)
t = The [[time]] taken for those [[wave]]s to pass a point.
====Equation 3====
''NB: You should remember this equation with v as the subject of the formula.''
Frequency = (Wave Speed)/(Wavelength)
<math> f = \frac{v}{\lambda}</math>
Where:
<math> \lambda</math> = The [[wavelength]] of the [[wave]].
<math>v</math> = The [[Wave Speed|wave speed]] of the [[wave]].
<math>f</math> = The [[frequency]] of the [[wave]].
===Example Calculations===