Multiple choice general knowledge science & technology

When a sound wave changes its medium, which of the following does not change?

  1. Wavelength

  2. frequency

  3. speed

  4. none of these
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

When sound travels from one medium to another, its frequency remains constant because it's determined by the source of the sound. However, wavelength and speed change because they depend on the properties of the medium (density, elasticity). This is why sounds seem different when heard through water versus air.

Keep practicing — related questions