If the frequency of a sound wave is doubled, what happens to its wavelength?

Practice Questions

Q1
If the frequency of a sound wave is doubled, what happens to its wavelength?
  1. It doubles
  2. It halves
  3. It remains the same
  4. It quadruples

Questions & Step-by-Step Solutions

If the frequency of a sound wave is doubled, what happens to its wavelength?
Correct Answer: Wavelength halves
  • Step 1: Understand that sound waves have two important properties: frequency and wavelength.
  • Step 2: Frequency is how many times the wave cycles in one second, measured in Hertz (Hz).
  • Step 3: Wavelength is the distance between two consecutive points of the wave, like from one peak to the next.
  • Step 4: Learn that wavelength and frequency are related: when one increases, the other decreases.
  • Step 5: If the frequency of the sound wave is doubled, it means it cycles twice as fast.
  • Step 6: Since wavelength is inversely proportional to frequency, if frequency goes up, wavelength must go down.
  • Step 7: Therefore, if the frequency is doubled, the wavelength is halved.
  • Wave Properties – Understanding the relationship between frequency and wavelength in sound waves, specifically that they are inversely proportional.
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