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Author Question: A laser shines 630-nm light through a grating producing a first order (m = 1) maximum at an angle of ... (Read 72 times)

wrbasek0

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on: Jul 28, 2018
A laser shines 630-nm light through a grating producing a first order (m = 1) maximum at an angle of 30. A second laser produces a first order maximum with the same grating at 20. What is the wavelength emitted by the second laser?
 a. 945 nm
  c. 420 nm
  b. 651 nm
  d. 431 nm

Question 2

What is the highest order (the m value) of the complete visible spectrum (390 nm to 710 nm) that can be obtained with a grating having 300 lines/mm?
 a. 5
  c. 8
  b. 9
  d. 4


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Fayaz00962

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

D

Answer to Question 2

D


wrbasek0

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

upturnedfurball

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Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

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