Carefully define the following terms to the best of your knowledge (only part d and e) Paraxial rays and fermats principle

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Carefully define the following terms to the best of your knowledge (only part d and e) Paraxial rays and fermats principle
Q1) Carefully, define the following terms to the best of your knowledge:
a) Gaussian optics.
b) Isochronous beams.
c) Optical path of a beam.
d) Paraxial rays.
e) Fermat's principle.
Transcribed Image Text:Q1) Carefully, define the following terms to the best of your knowledge: a) Gaussian optics. b) Isochronous beams. c) Optical path of a beam. d) Paraxial rays. e) Fermat's principle.
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