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Author Question: Three materials with n1 < n2 < n3 are arranged in layers of uniform thickness. A light ray in ... (Read 107 times)

james0929

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on: Jul 28, 2018
Three materials with n1 < n2 < n3 are arranged in layers of uniform thickness. A light ray in air enters the first layer at an angle of incidence of 40 and the ray eventually exits the third layer at the refracted angle q in air. What is the value of q?
 a. Some angle more than 40.
  c. 40.
  b. Insufficient information to answer.
  d. Some angle less than 40.

Question 2

A long steel beam has a length of fifty meters on a cold day when the temperature is 0C. What is the length of the beam on a hot day when T = 40C? (asteel= 1.1  10-5/C)
 a. 50.044 m
  c. 50.088 m
  b. 50.022 m
  d. 50.0044 m


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joanwhite

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

C

Answer to Question 2

B


james0929

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Reply #2 on: Jul 28, 2018
TY


joanwhite

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Reply #3 on: Jul 28, 2018
You're welcome


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