Vibration OF organ pipe||power and intensity OF sound

Vibrations in open organ pipe

Organ pipes are musical instruments which are used for producing musical sound by blowing air into the pipe. Organ pipes are of two types: closed organ pipes are closed at one end and open at the other. Open organ pipes are open at both ends. The study shows that the overall musical sound produced by an open organ piipe is richer than the musical sound produced by a closed organ pipe. Read the above passage and answer the following questions: (i) Why the overall musical sound produced by an open organ pipe is richer than the musical sound produced by a closed organ pipe ? (ii) What does this study imply in day to day life ?

In the case of vibration of closed end organ pipe in fundamental mode of vibratin, the pressure id maximum at

Vibrations in closed organ pipe resonance column experiment

Assertion : Sound produced by an open organ pipe is richer than the sound produced by pipe from both ends, in case of oper organ pipe.

Standing Waves|| Organ pipe|| Beats|| Appearance OF Sound to Ear.

Diagrammatically show first two modes of vibrations in case of an open organ pipe and write the ratio of their frequencies

Modes of vibration in an open organ pipe are represented by –

Modes of vibration in a closed organ pipe are represented by –

Assertion: The fundamental frequency of vibration of an open organ pipe remains same if the radius of the pipe is doubled. Reason: Frequency of vibration of an open organ pipe is independent of the radius of pipe.