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Author Question: A certain slide projector has a lens of focal length 15.0 cm. This lens forms an image measuring 100 ... (Read 166 times)

mcmcdaniel

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on: Jul 29, 2018
A certain slide projector has a lens of focal length 15.0 cm. This lens forms an image measuring 100 cm  100 cm on the screen when a slide whose dimensions are 50.0 mm  50.0 mm is being magnified.
 
  How far from the lens should the screen be placed?

Question 2

A slide projector is set up with its lens 6.0 m from the screen. The projected image on the screen is 1.5 m square for a slide (the object) that is 2.5 cm square.
 
  (a) How far is the slide from the lens? (b) What is the focal length of the projector lens?


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deja

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Reply #1 on: Jul 29, 2018
Answer to Question 1

3.15 m

Answer to Question 2

(a) 10 cm (b) 9.8 cm


mcmcdaniel

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Reply 2 on: Jul 29, 2018
Excellent

xiazhe

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Reply 3 on: Yesterday
:D TYSM

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