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Author Question: The distance between the ruled lines on a diffraction grating is 1770 nm. The grating is illuminated ... (Read 48 times)

pepyto

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The distance between the ruled lines on a diffraction grating is 1770 nm. The grating is illuminated at normal incidence with a parallel beam of white light in the 400 nm to 700 nm wavelength band.
 
  What is the longest wavelength that appears in the third order spectrum? A) 590 nm
  B) 570 nm
  C) 550 nm
  D) 530 nm
  E) 610 nm

Question 2

What is the name for the following polyatomic ion?
 
  PO4-3
 
  A) phosphate
  B) phosphorus oxide
  C) phosphinate
  D) trioxo phosphoride
  E) potassium


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matt

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pepyto

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Reply 2 on: Jul 29, 2018
YES! Correct, THANKS for helping me on my review


ebonylittles

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

 

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