Calculating Beat Frequency for Two Loudspeakers

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To calculate the beat frequency heard by a person walking between two loudspeakers emitting a 343 Hz tone, the Doppler effect must be applied. As the person moves towards one speaker and away from the other, the frequencies perceived will differ. The apparent frequency for the approaching speaker increases, while it decreases for the receding speaker. The beat frequency is determined by the difference between these two frequencies. The discussion concludes with the participant confirming they arrived at the correct answer.
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Homework Statement


Two loudspeakers face each other at opposite ends of a long corridor. They are connected to the same sourrce that produces a pure tone of 343Hz. A person walks from one speaker towards the other at a speed of 0.7ms-1
What beat frequency does the person hear?
speed of sound= 343ms-1


Homework Equations





The Attempt at a Solution


I know the beat frequency equals the frequency of one take the frequency of the second. So if this is right does that mean it is 343 minus the second frequency. Can someone pleasae tell me if this is correct and any hints on how to work out the second frequency please. Thankyou
 
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Using the doppler effect wright down the expression for the apparent freqency of the source heard by the observer while moving from one speaker to another. Note that he is going away from one speaker and moving towards the other.
 
thanks for the help. I got the right answer
 
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