Question
An observer is moving with velocity v_{0} towards a stationary sound source emitting waves of frequency n. If v is the velocity of sound waves, then the wavelength of the sound waves as detected by the observer will be:




(v_{0}/n)
medium
Solution
Since the observer is moving towards the source, the velocity of sound wave relative to the observer becomes v + v_{0}. As a result, the number of waves, each of wavelength λ, crossing the observer per second, i.e., apparent frequency n’ becomes
The wavelength observed by the observer will be:
SIMILAR QUESTIONS
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