when the length of air column in a pipe,closed at one end,is 20 cm,it produces the first resonance with vibration - Physics - Sound

Question

when the length of air column in a pipe,closed at one end,is 20
cm,it produces the first resonance with vibration of a tuning fork
if the error is 1 cm,what will be the length of the air column to
produce the next resonance

Sanjay Upadhyay · Accepted Answer

Dear student
Given that L=20cm
As we know the second resonance is the fifth harmonic And for fifth
harmonic L'=45L
=45×20= 16cm
hence the length for second resonance = 16cm

regards

when the length of air column in a pipe,closed at one end,is 20 cm,it produces the first resonance with vibration of a tuning fork.if the error is 1 cm,what will be the length of the air column to produce the next resonance