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O-LevelPhysicsWaves5054/11 · May/June 2025 · Q261 Mark

What happens to a sound wave when the note heard gets louder?

AIts amplitude increases.
BIts frequency increases.
CIts speed increases.
DIts wavelength increases.

✓ Correct answer

A: Its amplitude increases.

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About this question

Topic
Waves, O-Level Physics (syllabus 5054). Multiple choice, 1 mark.
Source
O-Level Physics, May/June 2025 Paper 1 Variant 1, question 26.

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