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Author Question: A diffraction grating with 396 lines/mm is illuminated with light of wavelength 343 nm. What is the ... (Read 92 times)

kamilo84

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on: Jul 29, 2018
A diffraction grating with 396 lines/mm is illuminated with light of wavelength 343 nm. What is the angular separation between the two second-order bright fringes?
 
  A) 31.5
  B) 15.8
  C) 32.9

Question 2

An object is placed in front of a thin lens. Which statements are correct in describing the image formed by the lens? (There could be more than one correct choice.)
 
  A) If the lens is convex, the image will never be virtual.
  B) If the image is real, then it is also inverted.
  C) If the image is real, then it is also upright.
  D) If the lens is concave, the image must be virtual.
  E) If the lens is convex, the image must be real.
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robbielu01

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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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kamilo84

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Reply #2 on: Jul 29, 2018
TY


robbielu01

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Reply #3 on: Jul 29, 2018
You're welcome


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