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Author Question: When the adjustable mirror on the Michelson interferometer is moved 20 wavelengths, how many fringe ... (Read 72 times)

mcmcdaniel

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on: Jul 28, 2018
When the adjustable mirror on the Michelson interferometer is moved 20 wavelengths, how many fringe pattern shifts would be counted?
 a. 5
  b. 10
  c. 20
  d. 40
  e. 80

Question 2

A thin sheet of plastic (n = 1.60) is inserted between two panes of glass to reduce infrared ( = 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


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kbennett34

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

e

Answer to Question 2

b


mcmcdaniel

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Reply 2 on: Jul 28, 2018
Excellent

Jossy

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Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

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