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Author Question: What was the major innovation that Augustin-Jean Fresnel discovered? A. A thinner lens that ... (Read 73 times)

misspop

  • Hero Member
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  • Posts: 540
on: Aug 27, 2018
What was the major innovation that Augustin-Jean Fresnel discovered?
 
  A. A thinner lens that required less material
  B. A lighter lens than was currently used
  C. A brighter lens that was currently used
  D. All of these choices

Question 2

The basic unit of stage lighting today is:
 
  A. The electric incandescent bulb
  B. The limelight
  C. The carbon arc
  D. None of these choices


Eunice618

  • Sr. Member
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  • Posts: 350
Reply #1 on: Aug 27, 2018
Answer to Question 1

D.

Answer to Question 2

A.


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