Multiple choice

Production of beats is a result of the phenomenon of _____.

  1. resonance

  2. interference

  3. reflection

  4. superposition
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Beats occur when two sound waves of slightly different frequencies interfere, creating periodic variations in loudness. This is fundamentally an interference phenomenon where wave superposition produces alternating constructive and destructive interference. Option B is correct - interference, not superposition principle (D), is the core phenomenon.

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