Physics for IGCSE & O level - Waves And Sounds (Section 7 - No. 49)
What is the main application of the 'echo-sounding' principle described?
Cleaning machinery
Measuring distance using the time taken for the echo to return
Breaking kidney stones
Analyzing sound waves
Paaiškinimas
The echo-sounding principle is used to measure distance using the time taken for the echo to return.