Doppler shift in frequency does not depend upon:
Correct answer: B. The distance of the source from the listener
- A. The actual frequency of the wave
- B. The distance of the source from the listener
- C. The velocity of the source
- D. The velocity of the observer
Explanation
Doppler formula depends on velocities and original frequency but not on separation distance; intensity falls with distance, but frequency shift is independent of distance.
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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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