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Question 74

A research vessel sends a pulse of ultrasound vertically downwards to the floor of a lake. An echo is registered by its receiver 0.8 s0.8\text{ s}0.8 s later. If the speed of sound in the lake water is 1500 m/s1500\text{ m/s}1500 m/s, how deep is the lake below the vessel?

[3]
Markscheme

Sound Questions

  1. IGCSE
  2. /Physics
  3. /Sound

295 exam-style questions on CIE IGCSE Physics Sound, covering Sound. Each one has a worked solution and a mark scheme showing where the marks go.

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