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JAMB Physics 1988 Question 26

Question 26

Sound

Which of the following factors affects the speed of sound in air? I. Temperature II. Pressure III. Frequency

  1. A.I only
  2. B.II only
  3. C.I and II only
  4. D.II and III only.
Show the answer and explanation

Answer: A (I only)

Explanation

The speed of sound in air rises with temperature; at constant temperature it does not depend on pressure or frequency.