1.

The fundamental frequency of a vibrating organ pipe is `200Hz`A. The first overtone may be `400Hz`B. The first overtone is `400Hz`C. The first overtone may be `600Hz`D. The second overtone may be `600Hz`

Answer» Correct Answer - A::C::D
If the pipe is closed, the first overtone may have frequency`=3v_(1)=3xx200=600Hz. ` If the pipe is open, the first overtone may have frequency `=2v_(1)=2xx200=400Hz.` The second overtone may have frequency , `v=3v_(1)=3xx200=600Hz.`


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