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Author Question: A projector lens is needed to form an image on a screen 20 times the size of its corresponding ... (Read 78 times)

karateprodigy

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on: Jul 28, 2018
A projector lens is needed to form an image on a screen 20 times the size of its corresponding object. The screen is located 8.0 m from the lens. What is the required focal length of the lens?
 a. 0.32 m
  c. 0.73 m
  b. 0.38 m
  d. 1.25 m

Question 2

An ideal gas is confined to a container with adjustable volume. The number of moles and temperature are constant. By what factor will the volume change if pressure quadruples?
 a. 16
  c. 1/4
  b. 4
  d. 1/16


ms_sulzle

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Reply #1 on: Jul 28, 2018
Answer to Question 1

B

Answer to Question 2

C


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karateprodigy

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Reply #2 on: Jul 28, 2018
Both answers were spot on, thank you once again


ms_sulzle

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Reply #3 on: Jul 28, 2018
Great! Please up vote :D


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