A) 480 Hz
B) 300 Hz
C) 240 Hz
D) 200 Hz
Correct Answer: D
Solution :
Fundamental frequency of open organ pipe \[=\frac{v}{2l}\] Frequency of third harmonic of closed pipe \[=\frac{3V}{4l}\] \[\therefore \frac{3v}{4l}=100+\frac{v}{2l}\]\[\Rightarrow \frac{3v}{4l}-\frac{2v}{4l}=\frac{v}{4l}=100\]\[\Rightarrow \frac{V}{2l}=200\,Hz.\]You need to login to perform this action.
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