The speed of waves depends upon the:
Correct answer: B. Tension and mass per unit length of the string
- A. Tension of the string
- B. Tension and mass per unit length of the string
- C. Diameter of the string
- D. Mass per unit length of the string
Explanation
The speed of wave in string depends upon Tension in string and Linear Density of string, (Linear Density = mass / length) so option B is correct as it includes both. While diameter of string is negligible.
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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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