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Waves, Oscillations & Acoustics

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Waves, Oscillations & Acoustics

Phase

The fractional position of a point within a wave cycle, expressed as an angle relative to a reference origin.

Φ(x,t) = k x - ω t + φ0 rad (radians)
Waves, Oscillations & Acoustics

Phase Difference

The angular difference between corresponding points on two waves or between different points on a single wave.

Δφ = (2π / λ) Δx = (2π / T) Δt rad (radians)
Waves, Oscillations & Acoustics

Phase Velocity

The speed at which a single monochromatic wave crest or phase front advances through a medium.

v_p = ω / k = f λ m/s
Waves, Oscillations & Acoustics

Pitch

The subjective psychoacoustic perception of a sound's frequency by human listeners.

Pitch ∝ f Hz (or Musical Notes)
Waves, Oscillations & Acoustics

Principle of Superposition

The principle stating that when two or more linear waves overlap at a point, total resultant displacement equals vector sum of individual…

y_total(x,t) = y1(x,t) + y2(x,t) + ... + yn(x,t) m