Practice question · Put in order
Order these milestones in the history of acoustics.
- Mersenne measures the speed of sound in air
- Doppler publishes the Doppler principle
- First sonar systems developed for submarine detection
- Pythagoras studies musical string ratios
- Mach defines the ratio of speed to sound speed
Hints
- The link between string length and pitch was known in antiquity.
- Detection technology came long after the underlying theory.
Show the answer
- Pythagoras studies musical string ratios
- Mersenne measures the speed of sound in air
- Doppler publishes the Doppler principle
- Mach defines the ratio of speed to sound speed
- First sonar systems developed for submarine detection
Why
Acoustics history: Pythagoras (c. 500 BCE), Mersenne (1636), Doppler (1842), Mach (1887), sonar (c. 1915).
Practise Sound Waves and the Doppler Effect
The app has 6 more questions on this lesson, and keeps your place in the course. Physics I is free to start.
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