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JAMB Physics 1988 Question 25

Question 25

Sound

A note is called an octave of another note when

  1. A.its frequency is twice that of the first note
  2. B.Its frequency is half of the first note
  3. C.the notes have the same fundamental frequency
  4. D.its periodic time is twice that of the first note.
Show the answer and explanation

Answer: A (its frequency is twice that of the first note)

Explanation

A note one octave above another has double its frequency.