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# Doppler Effect: Source Velocity's Impact on Frequency Shift

**Chapter 13, Problem 51P**

(choose chapter or problem)

**QUESTION:**

(a) Compare the shift in frequency if a \(2000\ Hz\) source is moving toward you at \(15 \frac{\mathrm{m}}{\mathrm{s}}\), versus you moving toward it at \(15 \frac{\mathrm{m}}{\mathrm{s}}\). Are the two frequencies exactly the same? Are they close?

(b) Repeat the calculation for \(150 \frac{\mathrm{m}}{\mathrm{s}}\) and then again

(c) for \(300 \frac{\mathrm{m}}{\mathrm{s}}\). What can you conclude about the asymmetry of the Doppler formulas?

### Questions & Answers

**QUESTION:**

(a) Compare the shift in frequency if a \(2000\ Hz\) source is moving toward you at \(15 \frac{\mathrm{m}}{\mathrm{s}}\), versus you moving toward it at \(15 \frac{\mathrm{m}}{\mathrm{s}}\). Are the two frequencies exactly the same? Are they close?

(b) Repeat the calculation for \(150 \frac{\mathrm{m}}{\mathrm{s}}\) and then again

(c) for \(300 \frac{\mathrm{m}}{\mathrm{s}}\). What can you conclude about the asymmetry of the Doppler formulas?

**ANSWER:**

Step 1 of 4

The following are given by the question:

Source frequency, \(f_{s}=2000 \mathrm{~Hz}\)

Source velocity, \(v_{s}=15 \frac{\mathrm{m}}{\mathrm{s}}\)

Speed of sound, \(v=343 \frac{\mathrm{m}}{\mathrm{s}}\)

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##### Doppler Effect: Source Velocity's Impact on Frequency Shift

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Explore the fascinating Doppler Effect and how it alters wave frequencies when a source or observer is in motion. Dive into the physics of frequency shift with formulas and practical examples, showcasing the significant impact of source velocity on observable frequencies.