JAMB Physics 2019 Objective — Question 14
Question 14 of 40 from the Joint Admissions and Matriculation Board (JAMB) Physics 2019 Objective paper, with the correct answer and a full explanation.
Advertisement
An organ pipe closed at one end is 110cm. What is the frequency of the fundamental note, assuming that the speed of sound in air is 330m/s?
- A. 100Hz
- B. 75HzCorrect
- C. 50Hz
- D. 25Hz
Explanation
For a closed pipe, fundamental frequency f₀=V/4L. L=110cm=1.10m. f₀=330/(4×1.10)=75Hz.
Advertisement
Sign up free to unlock
- Score tracking
- Practice history
- Saved questions
- Progress dashboard
- Personalized sessions
- Weak-topic breakdown
…and/or go further with premium services and No Ads.