question_answer

Frequency of the first overtone of a closed pipe of length \[{{\ell }_{c}}\] is equal to that of the second overtone of an open pipe of length\[{{\ell }_{0}}\]. Then the ratio \[{{\ell }_{c}}/{{\ell }_{o}}\] is equal to:

A) 1/2                               

B) 3   

C) 1                                             

D) 2