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Author Question: When an object is 12 cm in front of a concave spherical mirror, the image is formed 3.0 cm in front ... (Read 108 times)

krzymel

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on: Jul 29, 2018
When an object is 12 cm in front of a concave spherical mirror, the image is formed 3.0 cm in front of the mirror. What is the focal length of the mirror?
 
  A) 15 cm
  B) 4.0 cm
  C) 2.4 cm
  D) 1.3 cm

Question 2

A concave spherical mirror with a radius of curvature of 20 cm creates a real image 30 cm from the mirror. How far is the object from the mirror?
 
  A) 20 cm
  B) 15 cm
  C) 7.5 cm
  D) 5.0 cm


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zacnyjessica

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

C

Answer to Question 2

B


krzymel

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Reply 2 on: Jul 29, 2018
Wow, this really help

parshano

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

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