The distance between two consecutive nodes is half of the wavelength ($\lambda/2$).

The distance between two consecutive antinodes is half of the wavelength ($\lambda/2$).

Open-Open Tube: Resonates at every harmonic ($f_n = n \frac{v}{2L}$). Antinodes at both ends. | Open-Closed Tube: Resonates at odd harmonics only ($f_n = n \frac{v}{4L}$, n = 1, 3, 5...). Antinode at the open end, node at the closed end.

Constructive Interference: Waves combine to produce a larger amplitude. | Destructive Interference: Waves combine to produce a smaller amplitude or cancel each other out.

The phenomenon where two or more waves overlap, resulting in a combined wave whose displacement is the sum of the individual waves' displacements.

The interaction of two or more waves that results in either reinforcement (constructive interference) or cancellation (destructive interference) of the waves' amplitudes.

Periodic variations in amplitude resulting from the superposition of two waves with slightly different frequencies.

A wave pattern created when two waves of equal frequency and amplitude travel in opposite directions and interfere, resulting in fixed points of maximum and minimum displacement.

Points along a standing wave where the amplitude is at a minimum (ideally zero).

Points along a standing wave where the amplitude is at a maximum.

Harmonics are multiples of the fundamental frequency of a wave. They are also known as overtones and contribute to the timbre of a sound.