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Codav
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1. Hollow tube chimes are made of metal and are open at each end. One chime is 0.54m long.
-If the speed of sound is 346m/s, what is the frequency of sound produced by the third resonant length?
-What would happen to the frequency of sound produced by the third resonant length if the chime were shorter?
3. I'm having a hard time with this question, but here's my attempt:
Info: 0.54m, Speed of sound=346m/s
Half of one wavelength is the length of the chime.
λ=0.54m*2
λ=1.08m
Find frequency:
v=ƒ*λ
346m/s=ƒ*1.08m
ƒ=346/1.08
ƒ=320Hz
Find the third resonant length:
L3=5λ/4
L3=5(1.08)/4
L3=1.35m
Find frequency at this length:
ƒ=v/λ
ƒ=346m/s/1.35
=256Hz
3rd resonance frequency should be around 960Hz
-If the speed of sound is 346m/s, what is the frequency of sound produced by the third resonant length?
-What would happen to the frequency of sound produced by the third resonant length if the chime were shorter?
3. I'm having a hard time with this question, but here's my attempt:
Info: 0.54m, Speed of sound=346m/s
Half of one wavelength is the length of the chime.
λ=0.54m*2
λ=1.08m
Find frequency:
v=ƒ*λ
346m/s=ƒ*1.08m
ƒ=346/1.08
ƒ=320Hz
Find the third resonant length:
L3=5λ/4
L3=5(1.08)/4
L3=1.35m
Find frequency at this length:
ƒ=v/λ
ƒ=346m/s/1.35
=256Hz
3rd resonance frequency should be around 960Hz