Apparent frequncy of sound heard?

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A car moving at 30 m/s approaches a stationary sound source emitting a frequency of 5000 Hz, resulting in an apparent frequency of 5455 Hz due to the Doppler effect. The discussion raises a question about the frequency of sound reflected from the car, which is given as 6001 Hz. It clarifies that the reflected frequency is not the same as the apparent frequency received by the car because the car acts as a moving source for the reflected sound. The frequency perceived by the car when it reflects the sound differs due to its motion relative to the medium. The key takeaway is that the Doppler effect alters the frequency based on the relative motion of both the source and the observer.
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Homework Statement



A car is moving in a straight line at 30m/s approaches a stationary source which emits sound of frequency 5000hz. If the speed of sound is 330m/s . The apparent frequncy received by car is ((330+30)/ 330) x 5000= 5455hz.
What 's the frequency reflected form the car? the ans given is 6001hz.

why not the frequency received by the car = frequency of sound reflected by the car? which means the apparent frequency reflected form the car is also = 5455hz?

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The Attempt at a Solution

 
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The reflected sound is at the frequency you say, but only when "heard" from the car. The car itself is a source moving with respect to the medium, in the direction of the emitted (reflected) sound.
 

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