Question:
The first overtone frequency of an open organ pipe is equal to the fundamental frequency of a closed organ pipe. If the length of the closed organ pipe is 20 cm. The length of the open organ pipe is ______ cm.
The first overtone frequency of an open organ pipe is equal to the fundamental frequency of a closed organ pipe. If the length of the closed organ pipe is 20 cm. The length of the open organ pipe is ______ cm.
Updated On: Jul 8, 2024
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Correct Answer: 80
Solution and Explanation
\(2 \times \frac {v}{2L_0} = \frac {V}{4L_C}\)
\(⇒ L_0 = 4L_C\)
\(⇒ L_0 = 4 × 20\)
\(⇒ L_0 = 80\ cm\)
So, the answer is \(80 \ cm\).
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Sound is a vibration that propagates the mechanical wave of displacement and pressure, through a medium can be of any matter. In other words, the sound is the thin line between Music sound and Noise.
Types of Sounds:
Sound can be divided into two types depending on its frequency. The following are:-
Infrasonic Waves:
- Infrasonic waves have a frequency lower than 20 Hz. Since it is below the human hearing range, it is inaudible to humans.
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Ultrasonic waves:
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