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Textbook Solution
Physics
Light and Optics
An eyeglass lens with a power of 2 8 D
An eyeglass lens with a power of 2 8 D
An eyeglass lens with a power of + 2.8 D allows a far-sighted person to read a book held at a distance of 25 cm from her eyes. At what distance must she hold the book to read it without glasses?
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