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