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WB JEE Medical WB JEE Medical Solved Paper-2007

  • question_answer
    A closed organ pipe and an open organ pipe are tuned to the same fundamental frequency. The ratio of their lengths is

    A)  1:1                                        

    B)  2:1

    C)  1: 4                                       

    D)  1 : 2

    Correct Answer: D

    Solution :

                     Fundamental frequency of closed pipe, \[{{n}_{1}}=\frac{v}{4{{l}_{1}}}\] Fundamental frequency of open pipe, \[{{n}_{2}}=\frac{v}{2{{l}_{2}}}\] But                         \[{{n}_{1}}={{n}_{2}}\] \[\therefore \]                  \[\frac{{{l}_{1}}}{{{l}_{2}}}=\frac{1}{2}\]


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