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Wave Interference

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Part of Visual Science Project

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Last updated Jan 30, 2026. Clone to remix or explore the blocks below.

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examples

Real-World Interference

From headphones to soap bubbles

Diagram showing ambient noise waveform and inverted canceling waveform combining to flat line

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Noise cancellation: ambient wave + inverse wave = silence (destructive interference)

Close-up photo of soap bubble showing rainbow interference pattern colors

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Thin film interference: different wavelengths of light interfere constructively at different angles

Oscilloscope showing two guitar string frequencies creating beat pattern

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Beat frequency: when two notes are slightly out of tune, amplitude rises and falls rhythmically

Physics experiment showing light passing through two slits creating alternating bright and dark bands

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Double-slit experiment: light waves interfere, creating bright (constructive) and dark (destructive) bands

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concept

Wave Interference

Understanding constructive and destructive interference

🎧 How Noise-Canceling Headphones Work

Ambient noise is a sound wave hitting your ear. Your headphones detect it, create the exact opposite wave, and play it. The two waves meet and cancel out.

Result: silence.

Adjust the frequencies above. When waves align (same frequency), they reinforce. When misaligned, they interfere. This is wave superposition.

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quiz

Apply Interference Concepts

Think about wave superposition in real scenarios

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Your noise-canceling headphones detect ambient noise at 440 Hz. To cancel it, they must play a wave that is: