# Answer to Question #70448 in Other Physics for lordy

Question #70448

the first resonant length of a resonance tube is 40cm and the second resonant length is 122cm. find the third resonant length of resonance tube?

Expert's answer

The first resonant length is

L_1=λ/4

The second resonant length is

L_3=3 λ/4

The third resonant length of resonance tube is

L_5=5 λ/4=5/3 L_3=5/3 (122cm)=203 cm.

L_1=λ/4

The second resonant length is

L_3=3 λ/4

The third resonant length of resonance tube is

L_5=5 λ/4=5/3 L_3=5/3 (122cm)=203 cm.

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