Question

The fundamental frequency of a vibrating organ pipe is $$200\ Hz$$

A
The first overtone is 400 Hz
B
The first overtone may be 400 Hz
C
The first overtone may be 600 Hz
D
600 Hz is an second overtone

Solution

The correct options are B The first overtone may be $$400\ Hz$$ C The first overtone may be $$600\ Hz$$ D $$600\ Hz$$ is an second overtoneIf the pipe is closed, the first overtone may have frequency $$=3v1=3\times 200=600\ Hz$$. If the pipe is open, the first overtone may have frequency $$=2v1=2\times 200=400\ Hz$$. The second overtone may have frequency , $$v=3v1=3\times 200=600\ Hz$$.Physics

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