passwella.
Menu

JAMB Physics 1981 Question 24

Question 24

Sound

All of the following frequencies are overtones of 320 Hz EXCEPT

  1. A.960 Hz
  2. B.640 Hz
  3. C.520 Hz
  4. D.1280 Hz
  5. E.1600 Hz
Show the answer and explanation

Answer: C (520 Hz)

Explanation

Overtones (harmonics) are whole-number multiples of 320 Hz: 640, 960, 1280, 1600 Hz. 520 Hz is not a multiple.