May/June 2026 Paper 22

2026 · 40 questions · 40 parts · 40 marks

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24Sound Doppler EffectMedium1 mark
In still air, the air pressure is and the average distance between the air particles is . A sound wave produces rarefactions as it travels through the air. In a rarefaction, the air pressure is and the average distance between the air particles is . Which statement is correct?