NEET Class neet Answered
what is the difference between the open and closed organ pipe?
Asked by vishnu25102002r | 07 Apr, 2020, 06:20: PM
Expert Answer
when stationary wave formed in open pipe ( both ends are open ) antinodes are formed at open ends as shown in figure .
When stationary wave is formed at closed pipe, ( one end is open other end is closed ), node is formed at closed end and
antinode is formed at open end as shown in figure
As shown in figure in open pipe, wavelength of first harmonic or fundamental wave is 2l , where l is length of pipe
In open pipe, wavelength of second harmonic is l .
Hence in open pipe , wavelength λ of stationary wave is given by , λ = (2/n) l , n = 1,2,3.... etc
n =1 is for fundametal or first harmonic, n=2 is for second harmonic etc...
As shown in figure in closed pipe, wavelength of first harmonic or fundamental wave is 4l , where l is length of pipe
In closed pipe, wavelength of second harmonic is (4/3)l .
Hence in open pipe , wavelength λ of stationary wave is given by , λ = (4/n) l , n = 1,3,5.... etc
Answered by Thiyagarajan K | 07 Apr, 2020, 08:27: PM
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