« previous next »

Author Question: What was the major innovation that Augustin-Jean Fresnel discovered? A. A thinner lens that ... (Read 58 times)

misspop

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

D.

Answer to Question 2

A.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

Opium has influenced much of the world's most popular literature. The following authors were all opium users, of varying degrees: Lewis Carroll, Charles, Dickens, Arthur Conan Doyle, and Oscar Wilde.

Did you know?

People about to have surgery must tell their health care providers about all supplements they take.

Did you know?

Not getting enough sleep can greatly weaken the immune system. Lack of sleep makes you more likely to catch a cold, or more difficult to fight off an infection.

Did you know?

There are more sensory neurons in the tongue than in any other part of the body.

Did you know?

Adult head lice are gray, about ? inch long, and often have a tiny dot on their backs. A female can lay between 50 and 150 eggs within the several weeks that she is alive. They feed on human blood.

Major Indian Cultures, AD 1–1500 Major Indian Cultures, AD 1–1500
Major Events in the History of Psychology (2 of 6) Major Events in the History of Psychology (2 of 6)
Probability of Major Depression as a Function of 5-HTT Allele and Levels of Maltreatment ... Probability of Major Depression as a Function of 5-HTT Allele and Levels of Maltreatment ...
Jean Dubuffet, Corps de Dame. Jean Dubuffet, Corps de Dame.
Diagnosis for Major Depression Diagnosis for Major Depression
Major groups of forest biomes Major groups of forest biomes
Video: Blood Test Basics

For a complete list of videos, visit our video library