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Author Question: An object is placed at a distance of 40 cm from a thin, convex lens along its axis. The lens has a ... (Read 70 times)

ericka1

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on: Jul 28, 2018
An object is placed at a distance of 40 cm from a thin, convex lens along its axis. The lens has a focal length of 10 cm. What are the values, respectively, of the image distance and magnification?
 a. 13.3 cm and -0.33
  c. 60 cm and 2.0
  b. 13.3 cm and 0.33
  d. 60 cm and -0.50

Question 2

Why do vapor bubbles get larger in boiling water as they approach the surface?
 a. They only appear to get larger, this being a magnification effect due to looking through the water.
  b. The bubbles' pressure increases as they rise.
  c. The pressure in the water decreases as the bubble moves toward the surface.
  d. Bubbles always get bigger after they form.


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nicoleclaire22

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

A

Answer to Question 2

C


ericka1

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


nicoleclaire22

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


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