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Author Question: An optic fiber is made of clear plastic with an index of refraction of 1.50. For what range of ... (Read 134 times)

natalie2426

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on: Jul 29, 2018
An optic fiber is made of clear plastic with an index of refraction of 1.50. For what range of angles of incidence  with the lateral surface of the fiber will light remain inside the plastic guide if it is surrounded by air?
 
  A) 21.1 <  < 90
  B) 23.4 <  < 90
  C) 38.3 <  < 90
  D) 40.3 <  < 90
  E) 41.8 <  < 90

Question 2

Lucite has an index of refraction of 1.50. What is its critical angle if it is in air?
 
  A) 1.16
  B) 15
  C) 41.8
  D) 65.2
  E) 87.4
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AngeliqueG

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Reply #1 on: Jul 29, 2018
Answer to Question 1

E

Answer to Question 2

C


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natalie2426

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Reply #2 on: Jul 29, 2018
Both answers were spot on, thank you once again


AngeliqueG

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Reply #3 on: Jul 29, 2018
Great! Please up vote :D


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