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A sounding tuning fork is brought near the open end of a pipe containing air...

Physics
WAEC 2007

A sounding tuning fork is brought near the open end of a pipe containing air and the loudness of the sound is observed to increase. This observation is due to

  • A. an echo
  • B. resonance
  • C. interference
  • D. reverbration
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Correct Answer: Option B
Explanation

When the frequency of the tuning fork matches the natural frequency of the air column in the pipe, resonance occurs. This causes the air in the pipe to vibrate more vigorously, amplifying the sound and increasing its loudness.


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