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Question

Equation of longitudinal stationary wave in second overtone mode in a closed organ pipe is y=(4mm)sinπxcosπt Here x is in metre and t in second. Then match the following two columns:

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Solution

equation of wave S=Asin(kxωt)

kx=πx
l=2πλ=π
λ=2

in second overtone
L=4λ5=1.6m

from closed end one displacement node is at 2λ4=1m and other at 4λ4=2m

distance of pressure node is at 3λ4=1.5m

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