Question

In an open organ pipe, the harmonics that are missing are :

• A. depends upon length os the pipe
• B. none
• C. even
• D. odd

Answer 1

Answer: (B)

none

Frequency of $nth$ harmonic in an open pipe $f_n=\frac{nv}{2L}$
where $n=1,2,3,.....$
So, we get the frequencies as $f_1,f_2,f_3,....$
Thus all the harmonics are present in the open pipe.