WAEC Physics 2025 Objective — Question 28
Question 28 of 51 from the West African Examinations Council (WAEC) Physics 2025 Objective paper, with the correct answer and a full explanation.
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In a pipe closed at one end and open at the other end, the overtones that accompany the fundamental frequency are
- A. Odd integer multiples of the fundamental frequencyCorrect
- B. Even integer multiples of the fundamental frequency
- C. All integer multiples of the fundamental frequency
- D. Prime integer multiples of the fundamental frequency
Explanation
A pipe closed at one end produces only odd harmonics: f₀, 3f₀, 5f₀, 7f₀, ...
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