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← ScienceWhich acoustic effect suppresses noise using destructive interference?
A)Active noise cancellation✓
B)Sound reinforcement feedback
C)Acoustic resonance amplification
D)Doppler shift compensation
💡 Explanation
Active noise cancellation uses destructive interference, where opposing sound waves cancel each other due to their phase difference. Sound waves superimpose, and reduce the noise, rather than amplifying it using resonance, because constructive interference would raise overall sound levels.
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