Standing waves with Sound waves

Question 1

What is the first harmonic for one end open pipes

Answer 1

1/4 of wavelength

Question 2

What is the first harmonic for open at both end pipes

Answer 2

1/2 of wavelength

Question 3

After the first harmonic what is the rule for the following harmonics

Answer 3

1/2 wavelength increase each time

Question 4

What is the rule for antinode/node placement

Answer 4

always node at closed end and anitnode near open end

Question 5

What is the strange rule for nodes and anitnodes in this case

Answer 5

displacement node - doesn’t move at all
displacement anti node - move with maximum displacement