Doppler Effect-Finding Observed Frequency for an Observer Moving Towards a Stationary Siren
Question
An observer is moving at a speed of 40 m/s towards a stationary siren sounding at a frequency of 600 Hz. If the speed of sound in air is 320 m/s, what is the frequency of the sound heard by the observer?
Options
686 Hz
675 Hz
600 Hz
533 Hz
525 Hz
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