Posted by Zach Neal on .
The lowest frequency in the audible range is 20Hz.
A)What is the length of the shortest openopen tube needed to produce this frequency?
B)What is the length of the shortest openclosed tube needed to produce this frequency?

Physics 
Elena,
A) L=λ/2=v/2f
B) L=λ/4=v/4f
v is the speed of sound