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ppk ppk
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12 years ago
A person with normal eyesight uses a converging lens of focal length 10 cm. He holds the lens close to his eyes to finish an engraving job. What is the magnifying power of the lens?
A) 3.5
B) 4.5
C) 6.5
D) 7.5
E) 8.5
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bio_manbio_man
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#1
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12 years ago Edited: 2 years ago, bio_man
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