66. A schoolboy, reading a book without glasses, holds

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Uploaded: 30.05.2020
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66. A schoolboy, reading a book without glasses, holds it at a distance of 40 cm. The distance of the best view of the normal eye is 25 cm. What is the optical power of the glasses that the student should wear?

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Detailed solution. Decorated in Microsoft Word 2003. (Target decided to use formula editor)

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