An object placed in front of a concave mirror with radius R = 20 cm has its image formed 20 cm behind the mirror. What is the object distance?

Computer Networking: A Top-Down Approach (7th Edition)
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Author:James Kurose, Keith Ross
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Chapter1: Computer Networks And The Internet
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An object placed in front of a concave
mirror with radius R = 20 cm has its image
formed 20 cm behind the mirror. What is
the object distance?
O p = -10 cm
p = 12 cm
p = 60/7 cm
O p = 10 cm
p = 20/3 cm
Transcribed Image Text:An object placed in front of a concave mirror with radius R = 20 cm has its image formed 20 cm behind the mirror. What is the object distance? O p = -10 cm p = 12 cm p = 60/7 cm O p = 10 cm p = 20/3 cm
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