Principle of Superposition (y = y₁ + y₂)
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y = y₁ + y₂
What each symbol means
| Symbol | What it stands for |
|---|---|
| y | Resultant displacement |
| y₁ | Wave 1 displacement |
| y₂ | Wave 2 displacement |
When to use this
Linear superposition for small amplitudes. Waves pass through unchanged. Leads to interference, beats, standing waves.