A standing-wave pattern is formed when the length of the string is:
Correct answer: D. an integral multiple of half wavelength
- A. an odd multiple of quarter wavelength
- B. an integral multiple of quarter wavelength
- C. an integral multiple of wavelength
- D. an integral multiple of half wavelength
Explanation
A standing wave pattern is formed when the length of the string is an integral multiple of half wavelength.
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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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