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Author Question: An optical fiber is made of clear plastic with index of refraction n = 1.50 . For what angles with ... (Read 128 times)

AEWBW

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on: Jul 28, 2018
An optical fiber is made of clear plastic with index of refraction n = 1.50 . For what angles with the surface will light remain within the plastic guide?
 a. j < 66.6
  c. j < 51.7
  b. j < 41.8
  d. j < 57.1

Question 2

Dmitri places one end of a copper rod in a heat reservoir and the other end in a heat sink. By what factor is the rate of heat flow changed when the temperature difference between the reservoir and sink is doubled?
 a. 2.0
  c. 4.0
  b. 1/2
  d. 1/4


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sokh

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Reply #1 on: Jul 28, 2018
Answer to Question 1

B

Answer to Question 2

A


AEWBW

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Reply #2 on: Jul 28, 2018
Both answers were spot on, thank you once again


sokh

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Reply #3 on: Jul 28, 2018
Great! Please up vote :D


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