Question:

The fundamental frequency of a closed organ pipe is equal to the first overtone frequency of an open
organ pipe. If length of the open pipe is 60 cm, the length of the closed pipe will be :      

(1) 60 cm 

(2) 45 cm 

(3) 30 cm 

(4) 15 cm                               JEE-2024         

Solution:                
The fundamental frequency of a closed organ pipe is equal to the first overtone frequency of an open organ pipe. If length of the open pipe is 60 cm, the length of the closed pipe will be : (1) 60 cm (2) 45 cm (3) 30 cm (4) 15 cm JEE-2024

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