Respuesta :
Answer;
C. measure their amplitudes
Explanation;
- The amount of energy in a wave is related to its amplitude and its frequency.
- The amplitude of a wave is how the wave is measured from the rest position or mid-line to the top of a crest or bottom of a trough, measured in meters.
- A high amplitude wave is a high-energy wave, and a low-amplitude wave is a low-energy wave. For instance in the case of sound waves, a high amplitude sound will be loud, and a low amplitude sound will be quiet.