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Author Question: Suppose an object is placed 6.0 cm in front of a lens that has a focal length of 4.0 cm. Where is ... (Read 178 times)

newbem

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on: Jul 28, 2018
Suppose an object is placed 6.0 cm in front of a lens that has a focal length of 4.0 cm. Where is the image located? What are the magnification and the character of the image?

Question 2

A magnifying glass has a convex lens of focal length 15 cm. At what distance from a postage stamp should you hold this lens to get a magnification of +2.0?


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amcvicar

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

12 cm beyond the 4.0 cm lens, M = -2.0, the image is real and inverted

Answer to Question 2

7.5 cm


newbem

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Reply #2 on: Jul 28, 2018
TY


amcvicar

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Reply #3 on: Jul 28, 2018
You're welcome


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