Physics 0625 · IGCSE · Sound

Sound — practice question

A sound wave moves outwards from a loudspeaker into the air around it. Three statements are given here. Which of these statements about the sound wave are correct?

  • A1 and 2 only
  • B1 and 3 only
  • C2 and 3 only
  • D1, 2 and 3

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