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Questions - frequency

Question

A tuning fork has a frequency of 440 Hz.

  1. What does a frequency of 440 Hz mean?
  2. Calculate the period of vibration.

Key point

There are three equations for calculating frequency:

  • \(\text{frequency f =}~\frac{\text{number of waves to pass a point}}{\text{time taken in seconds}}\)
  • \(\text{f =}~\frac{\text{v}}{\text{λ}}\)
  • \(\text{f =}~\frac{\text{1}}{\text{T}}\)

Use the information given in the question to select the appropriate equation to use.

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