What's the Difference Between Monochromatic and Coherent Waves?

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Discussion Overview

The discussion centers on the differences between monochromatic and coherent waves, with a focus on their definitions and characteristics. Participants seek clarification on these concepts in the context of an upcoming exam.

Discussion Character

  • Conceptual clarification

Main Points Raised

  • One participant defines monochromatic as "same frequency" and coherent as "same phase and polarization."
  • Another participant suggests that monochromatic light can have different polarizations but must have the same frequency, while coherent light is monochromatic and has the same polarization.
  • A later reply confirms this distinction, indicating that monochromatic light can indeed vary in polarization.
  • One participant adds a linguistic breakdown of the term "monochromatic," explaining its roots as "one color."

Areas of Agreement / Disagreement

Participants generally agree on the definitions of monochromatic and coherent waves, but the discussion does not explore deeper implications or potential nuances, leaving some aspects unresolved.

Contextual Notes

The discussion does not address potential limitations or assumptions underlying the definitions provided, nor does it explore the implications of these terms in different contexts.

nousername
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Monochromatic vs Coherent - URGENT. PLEASE HELP!

Hey guys,

I have this exam tomorrow, and i am so confused between monochromatic and coherent waves. Can someone please explain them and the difference between them to me. The more i read the more i get confused.

Thank you

kirollos
 
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Monochromatic means "same frequency" and coherent means "same phase and polarization".
 


Excellent. Thanks. So monochromatic can be light with all different polarizations but same frequency, while coherent is monochromatic but has same polarization?
 


Basically, yes.
 


kirollos said:
Excellent. Thanks. So monochromatic can be light with all different polarizations but same frequency, while coherent is monochromatic but has same polarization?

You could have deduced this.
mono = one; chroma = colour; monochromatic = one colour
 

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