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Question 238

A hiker stands in front of a vertical cliff face at a distance of 85 m. The hiker blows a loud whistle.

Take the speed of sound in air as 340 m/s.

How long after blowing the whistle does the hiker hear the echo reflected from the cliff?

A

0.25 s0.25\text{ s}0.25 s

B

0.50 s0.50\text{ s}0.50 s

C

2.0 s2.0\text{ s}2.0 s

D

4.0 s4.0\text{ s}4.0 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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