Fermat's Principle to explain lenses and mirrors

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Discussion Overview

The discussion explores the application of Fermat's principle of least time in explaining the shapes of lenses and mirrors. Participants are interested in both theoretical and practical implications of this principle in optics.

Discussion Character

  • Exploratory, Technical explanation

Main Points Raised

  • One participant asks how Fermat's principle can be used to explain the required shapes of lenses and mirrors.
  • Another participant references Feynman's explanation, suggesting it may provide insight into the topic.
  • A separate inquiry is made regarding the application of Fermat's principle specifically for mirrors.
  • Additional references to video timestamps are provided, indicating a desire to share visual explanations.
  • One participant expresses gratitude for the video shared, indicating engagement with the content.

Areas of Agreement / Disagreement

The discussion does not appear to reach a consensus, as participants raise questions and references without definitive answers or resolutions.

Contextual Notes

Participants have not provided detailed explanations or mathematical derivations, and the discussion relies on external video content for clarification.

isnainidiah
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How do we use Fermat's principle of least time to explain the required shapes of lenses and mirrors?
 
Last edited:
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Here's Feynman's explanation [see 57m15s]
 
How about using fermat's principle for mirrors ?
 
[see 27m05s]
 
Hmm okay, thank you for the video,,
 

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