A silence zone occurs due to:
Correct answer: C. Destructive interference
- A. Resonance
- B. Polarization
- C. Destructive interference
- D. Constructive interference
Explanation
A silence zone occurs due to destructive interference, where waves of equal amplitude and frequency meet out of phase, canceling each other out and creating a zone of reduced or no sound.
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About Waves
Progressive waves transfer energy through oscillations, with wavelength, frequency, amplitude and wave speed related by v = fλ; sound speed depends on the medium. Superposition produces interference and stationary waves in strings and organ pipes, while simple harmonic motion describes the oscillation itself and must be distinguished from wave propagation.
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