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O-LevelPhysicsWaves5054/12 · Oct/Nov 2016 · Q301 Mark

A man stands between two tall buildings, P and Q. The diagram is not drawn to scale. He is 50 m from P and 200 m from Q. He fires a gun and the first two echoes he hears are 1.0 second apart. What is the speed of sound calculated from this observation?

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A250 m/s

B300 m/s

C330 m/s

D500 m/s

✓ Correct answer

B: 300 m/s

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About this question

Topic: Waves, O-Level Physics (syllabus 5054). Multiple choice, 1 mark.
Source: O-Level Physics, Oct/Nov 2016 Paper 1 Variant 2, question 30.

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