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Author Question: A thin sheet of plastic (n = 1.60) is inserted between two panes of glass to reduce infrared (l = ... (Read 125 times)

tatyanajohnson

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A thin sheet of plastic (n = 1.60) is inserted between two panes of glass to reduce infrared (l = 700 nm) losses. What thickness (in nm) is necessary to produce constructive interference in the reflected infrared radiation?
 a. 218
  b. 109
  c. 55
  d. 318
  e. 443

Question 2

The light reflected from a soap bubble (n = 1.40) appears red (l = 640 nm) at its center. What is the minimum thickness (in nm)?
 a. 124
  b. 104
  c. 114
  d. 134
  e. 234



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Brummell1998

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Answer to Question 1

B

Answer to Question 2

C




tatyanajohnson

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Reply 2 on: Jul 28, 2018
Thanks for the timely response, appreciate it


steff9894

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Reply 3 on: Yesterday
Wow, this really help

 

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