Physics 0625 · IGCSE · Sound

Sound — practice question

A dolphin has a hearing range of $150\,\text{Hz}$-$150\,\text{kHz}$. Which range of frequencies can be heard by both humans with good hearing and dolphins?

  • A$20\,\text{Hz}$-$150\,\text{Hz}$
  • B$20\,\text{Hz}$-$150\,\text{kHz}$
  • C$20\,\text{kHz}$-$150\,\text{kHz}$
  • D$150\,\text{Hz}$-$20\,\text{kHz}$

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