Resonance in a tube

A tube full of air can resonate, as sound waves propagate along it.
Log in if you want to mark this as completed
Excellent 29
Very helpful 13
Quite helpful 11
Slightly helpful 3
Confusing 1
No rating 0
My brain hurts 0
Really quite difficult 0
Getting harder 9
Just right 47
Pretty simple 1
No rating 0