What is the Formula for the Doppler Effect?

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Homework Help Overview

The discussion revolves around the Doppler Effect, specifically the formulas associated with it for different scenarios involving moving observers and sources. Participants express curiosity about the topic and share various equations related to the Doppler Effect.

Discussion Character

  • Exploratory, Conceptual clarification, Mathematical reasoning

Approaches and Questions Raised

  • Participants share multiple formulas for the Doppler Effect, including cases for moving observers, moving sources, and both moving simultaneously. Some express confusion about the relativistic transformations and their absence in previous chapters.

Discussion Status

The discussion includes various contributions of formulas and insights into the Doppler Effect. While some participants provide equations, there is no explicit consensus on a single formula or approach, and questions about the context of these equations remain open.

Contextual Notes

Some participants note that the topic was not covered in their coursework, leading to a reliance on external sources. There is also mention of relativistic effects, which may not have been addressed in the participants' studies.

Blueice88
Hi All... Who knows the formula of the Dopler´s Effect??Please someone help me.This is a little curiosity that I Have.Regards.




BlueIce88
 
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DOPPLER EFFECT FOR MOVING OBSERVER:

F = (1+ OR 1-(U/V))f

Units are inversed seconds

v = speed of wave
u = speed of observer
F = with doppler effect
f = without doppler effect

I just got this outta my old physics book as we didn't cover this chapter so it's as new to me as to you!
 
DOPPLER EFFECT FOR MOVING SOURCE:

F = ((1)/(1+ or 1-(U/V)))f

Same units as above
Same variable definitions as above



DOPPLER EFFECT FOR MOVING SOURCE AND MOVING OBSERVER

F = ((1+ or 1-(u/v))/(1+ or 1-(U/V)))f

Same units as above
Addition variables:

u = moving observer
U = moving source
 
Relativistic transformation given by [squ](1 + v/c) / [squ](1 - v/c) if you want that one for high velocities.

Wavelength is red-shifted (lengthened), and frequency shortened for sources moving away. Blue-shift/longer frequency for sources moving towards observer.
 
Yeah mulder. Interesting I didn't see these relativistic equations in the relativity chapter...

The low note on a bass guitar, traveling at the speed of light, ouch that might hurt my ears!
 
Thank You... Very Much friends! I´m Glad to be part of this forum!Regards.


[]´s


BlueIce88
 

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