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Wednesday, 15 April 2026
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Physics Past Questions and Answers

Topic: Simple treatment of overtones produced by vibrating strings and their columns

Jamb Physics Questions - Simple treatment of overtones produced by vibrating strings and their columns

Question 1:
All of the following frequencies are overtones of 320 Hz EXCEPT
  • A 960Hz
  • B 640Hz
  • C 520Hz
  • D 1280Hz
  • E 1600Hz
View Answer & Explanation
Question 2:
In a resonance tube experiment, a tube fixed length is closed at one end and several tuning forks of increasing frequency used to obtain resonance at the open end. If the tuning fork with the lowest frequency which gave resonance had a frequency f1 and the next tuning fork to give resonance had a frequency f2, find the ratio \(\frac{f^2}{f^2}\).
  • A 8
  • B 3
  • C 2
  • D \(\frac{1}{2}\)
  • E \(\frac{1}{3}\)
View Answer & Explanation
Question 3:
In a resonance tube experiment, a tube fixed length is closed at one end and several tuning forks of increasing frequency used to obtain resonance at the open end. If the tuning fork with the lowest frequency which gave resonance had a frequency f1 and the next tuning fork to give resonance had a frequency f2, find the ratio \(\frac{f^2}{f^2}\).
  • A 8
  • B 3
  • C 2
  • D \(\frac{1}{2}\)
  • E \(\frac{1}{3}\)
View Answer & Explanation
Question 4:
If the fundamental frequency of a closed pipe organ on a day when the speed of sound is 340ms-1 is 170Hz, then the length of the pipe is
  • A 50cm
  • B 70cm
  • C 100cm
  • D 150cm
  • E 200cm
View Answer & Explanation
Question 5:
The air column as shown above is set into vibration by the turning fork. In this State of resonance, the waves in the air column will be
  • A Stationary and transverse
  • B Stationary and longitudinal
  • C Progressive and transverse
  • D Progressive and longitudinal
View Answer & Explanation