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Dreams2Knight
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[SOLVED] Doppler Effect?
A bat flying at 4.0 m/s emits a chirp at 20 kHz. If this sound pulse is reflected by a wall, what is the frequency of the echo received by the bat?
Not sure. Do I use the f(1)=f*[(v+/-observer velocity)/(v+/-source velocity)]
Not sure where to start. I seem to remember something about sound waves being returned inverted if they hit a wall. Does this factor in?
Homework Statement
A bat flying at 4.0 m/s emits a chirp at 20 kHz. If this sound pulse is reflected by a wall, what is the frequency of the echo received by the bat?
Homework Equations
Not sure. Do I use the f(1)=f*[(v+/-observer velocity)/(v+/-source velocity)]
The Attempt at a Solution
Not sure where to start. I seem to remember something about sound waves being returned inverted if they hit a wall. Does this factor in?