The Doppler effect: Putting it all together
Bat echo A bat emits short pulses of sound at a frequency of 1.60 X 105 Hz. As the bat swoops toward a flat wall at speed 30 m/s, this sound is reflected from the wall back to the bat. (a) What is the frequency of sound incident on the wall? (b) Consider the wall as a sound source at the frequency calculated in part (a). What frequency of sound does the bat hear coming from the wall?
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