What Are Frequency of Beats and Effective Frequency in Wave Interference?

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Homework Help Overview

The discussion revolves around the concepts of frequency of beats and effective frequency in the context of wave interference, as presented in a textbook. Participants are exploring the definitions and implications of these terms.

Discussion Character

  • Conceptual clarification, Assumption checking

Approaches and Questions Raised

  • The original poster attempts to understand the definitions of frequency of beats and effective frequency, referencing equations from their textbook. They express confusion about the nature of effective frequency and its representation in a visual example.

Discussion Status

Some participants provide links to external resources that may clarify the concepts. There is an ongoing inquiry into the specifics of effective frequency, particularly in relation to visual representations of waveforms.

Contextual Notes

The original poster indicates a need for clarification on the definitions and visual representations of the concepts, suggesting that they may be grappling with foundational aspects of wave interference.

InvalidID
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So my textbook says that the equation for the frequency of beats is |{ f }_{ 1 }-{ f }_{ 2 }| and the equation for effective frequncy is \frac { { f }_{ 1 }+{ f }_{ 2 } }{ 2 }, but what is frequncy of beats and effective frequency anyways?

Edit: Opps. Should've posted it here: https://www.physicsforums.com/forumdisplay.php?f=61
 
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See:
http://hyperphysics.phy-astr.gsu.edu/%E2%80%8Chbase/audio/sumdif.html#c1

ehild
 
Last edited by a moderator:
ehild said:
See:
http://hyperphysics.phy-astr.gsu.edu/%E2%80%8Chbase/audio/sumdif.html#c1

ehild


Thanks for the that! But what is effective frequency? The superimposed wave looks weird like this: http://hyperphysics.phy-astr.gsu.edu/%E2%80%8Chbase/sound/imgsou/beat4.gif

So is the effective frequency the frequency of the wave in the dotted line or the solid line?
 
Last edited by a moderator:
The solid line.

ehild
 

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