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Question 149

A person stands at a distance of 255 m from a large, flat vertical cliff. They clap their hands loudly once and hear an echo from the cliff.

Assuming the speed of sound in the air is 340 m/s, how long after clapping does the person hear the echo?

A

0.75 s0.75\text{ s}0.75 s

B

1.33 s1.33\text{ s}1.33 s

C

1.5 s1.5\text{ s}1.5 s

D

3.0 s3.0\text{ s}3.0 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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