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O-LevelPhysicsWaves5054/11 · Oct/Nov 2019 · Q281 Mark

A person hears an echo after a sound hits a solid cliff face. What causes the echo?

Aabsorption
Bdispersion
Creflection
Drefraction

✓ Correct answer

C: reflection

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About this question

Topic
Waves, O-Level Physics (syllabus 5054). Multiple choice, 1 mark.
Source
O-Level Physics, Oct/Nov 2019 Paper 1 Variant 1, question 28.

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