Which statements are correct for an ideal open organ pipe of effective length Lₑ?
Select all that apply

Question

Which statements are correct for an ideal open organ pipe of effective length Lₑ?

G1 Physics · Accepted Answer

An open pipe has displacement antinodes at both ends. Its allowed wavelengths satisfy Lₑ = nλₙ/2. Hence, fₙ = nv/(2Lₑ), so all integer harmonics occur. With two open ends, the effective length is Lₑ = L+2e. Therefore all four statements are correct.