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JAMB Physics 1995 Question 31

Question 31

Sound

The pitch of an acoustic device can be increased by

  1. A.increasing the frequency
  2. B.increasing the amplitude
  3. C.decreasing the loudness
  4. D.decreasing the intensity
Show the answer and explanation

Answer: A (increasing the frequency)

Explanation

Pitch depends on frequency: a higher frequency gives a higher pitch. Amplitude, loudness and intensity do not change pitch.