refraction Flashcards

(5 cards)

1
Q

finding refractive index

A

n = c/v or sin i/sin r (less dense to dense); sin r/sin i (dense to less dense)

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2
Q

critical angle, C

A

sin^-1(1/n)

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3
Q

what is a critical angle?

A

the angle of incidence in an optically denser medium for which the angle of refraction in the optically less dense medium is 90 degrees.

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4
Q

advantages of optical fiber

A
  • can carry much more information over long distances.
  • immune to electromagnetic interference.
  • signal transmitted experiences much lesser signal loss.
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5
Q

finding angle of refraction, r

A

sin^-1(sin i/n)

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