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Author Question: The distance between the ruled lines on a diffraction grating is 1770 nm. The grating is illuminated ... (Read 82 times)

pepyto

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on: Jul 29, 2018
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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Reply #1 on: Jul 29, 2018
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
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pepyto

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Reply 2 on: Jul 29, 2018
Excellent

aliotak

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Reply 3 on: Yesterday
:D TYSM

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