Question 10 — A ship searching for a - Questions at the end of the chapter - Chapter 10 - Sound Waves: Characteristics and Application (Exploration

Last updated at July 20, 2026 by

Question 10
A ship searching for a sunken ship sent a sonar signal and detected an echo after 5 s. If ultrasonic wave travels at 1525 m s⁻¹ in seawater, approximately how far down in the ocean is the wreckage of the sunken ship located?
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  • Time to reach the wreck = 5 2 =2.5 s .
  • Depth =v× t=1525× 2.5= 3812.5 m .
Sonar Depth One-way time = 5 / 2 = 2.5 s Depth = speed times time 1525 times 2.5 = 3812.5 m
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