Physics 0625 · IGCSE · Sound

Sound — practice question

Sound waves with frequency $2.0\,\text{kHz}$ move through a substance at $800\,\text{m s}^{-1}$. What wavelength do the waves have?

  • A$0.40\,\text{m}$
  • B$2.5\,\text{m}$
  • C$400\,\text{m}$
  • D$1600\,\text{m}$

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