Department of Pre-University Education, KarnatakaPUC Karnataka Science Class 12
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A Man Wearing Glasses of Focal Length +1 M Cannot Clearly See Beyond 1 M - Physics

MCQ

A man wearing glasses of focal length +1 m cannot clearly see beyond 1 m

Options

  • if he is farsighted

  • if he is nearsighted

  • if his vision is normal

  • in each of these cases

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Solution

 in each of these cases

The man is wearing glasses of positive power (converging lens). Hence, he cannot see nearby objects clearly. In other words, he is farsighted. Since he cannot see beyond 1 m, he is nearsighted. If a person with normal vision wears glasses of focal length +1 m, then the person will not be able to see beyond 1 m.

Concept: Optical Instruments - The Eye
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APPEARS IN

HC Verma Class 11, 12 Concepts of Physics 1
Chapter 19 Optical Instruments
MCQ | Q 8 | Page 431
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