Question

Choose the correct word to complete the statement.

a) For a pipe open at both ends, the harmonic number is equal to the number of (nodes or antinodes)?

b) The distance from a node to its adjacent antinode is always equal to a (quarter or half)?

c) For a pipe closed at one end, the wavelength of the fundamental harmonic equals (two or four) times the pipe length?

Answer 1

(a) Harmonic number is equal to number of nodes.

(b) The distance from a node to its adjacent antinode is always equal to quarter of wavelength.

(c) for pipe closed at one end, the wavelength of fundamental harmonic equals four times the pipe length.