Physics 5054 · O Level · Sound

Sound — practice question

A note produces a sound wave, which is shown on the screen of a cathode-ray oscilloscope. The time-base is set to $5\,\text{ms}$ per division. Determine the frequency of the note.

  • A$20\,\text{Hz}$
  • B$50\,\text{Hz}$
  • C$60\,\text{Hz}$
  • D$150\,\text{Hz}$

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