When two identical waves move in the same direction, they give rise to:
Correct answer: C. Constructive Interference
- A. Stationary waves
- B. Beats
- C. Constructive Interference
- D. Doppler's Effect
Explanation
Two identical waves traveling together can superpose constructively or destructively depending on phase; if in phase they produce constructive interference, enhancing amplitude. Stationary waves require opposite directions.
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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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