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Question 195

A bat emits an ultrasound pulse. An echo returns 0.050 s later from an obstacle which is 8.5 m from the bat. What is the speed of the sound wave in air?

A

0.425 m/s0.425\text{ m/s}0.425 m/s

B

0.85 m/s0.85\text{ m/s}0.85 m/s

C

170 m/s170\text{ m/s}170 m/s

D

340 m/s340\text{ m/s}340 m/s

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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