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Question 71

A ship uses a sonar system to measure the depth of the ocean. It emits a sound pulse downwards towards the seabed and detects the reflected echo after a time duration of ttt. Let the speed of sound in seawater be vvv. Which of the following expressions represents the depth of the ocean floor?

A

v×tv \times tv×t

B

(v×t)÷2(v \times t) \div 2(v×t)÷2

C

2×v×t2 \times v \times t2×v×t

D

v÷(2×t)v \div (2 \times t)v÷(2×t)

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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