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Northa Northa
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7 years ago
A person with normal eyesight uses a converging lens of focal length 10 cm. He holds the lens close to his eye to finish an engraving job. At what distance from the job he must hold the lens?
A) -7.1 cm
B) 7.1 cm
C) -30 cm
D) 30 cm
E) 20 cm
Textbook 
Physics

Physics


Edition: 4th
Author:
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Raj.SRaj.S
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