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                                    The velocity of sound in air is 333 m/s. In order to produce the second overtone of frequency 999 Hz in it, the length of the open organ pipe will be : | 
                            
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Answer»  The velocity of sound in air is 333 m/s. In order to produce the second overtone of frequency 999 Hz in it, the length of the open organ pipe will be :  | 
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