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Author Question: A plane convex lens is made of glass (n = 1.5) with one flat surface and the other having a radius ... (Read 67 times)

HudsonKB16

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on: Jul 28, 2018
A plane convex lens is made of glass (n = 1.5) with one flat surface and the other having a radius of 20 cm. What is the focal length (in cm) of the lens?
 a. 20
  b. 30
  c. 40
  d. 10
  e. 50

Question 2

A fish is 80 cm below the surface of a pond. What is the apparent depth (in cm) when viewed from a position almost directly above the fish? (For water, n = 1.33.)
 a. 50
  b. 60
  c. 40
  d. 70
  e. 110


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sultansheikh

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

C

Answer to Question 2

B


HudsonKB16

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Reply 2 on: Jul 28, 2018
Wow, this really help

gcook

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Reply 3 on: Yesterday
Great answer, keep it coming :)

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