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A 35-year-old patent clerk needs glasses of 50-cm focal length to read patent applications that he...

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Physics

A 35-year-old patent clerk needs glasses of 50-cm focal lengthto read patent applications that he holds 25 cm from his eyes. Fiveyears later, he notices that while wearing the same glasses, he hasto hold the patent applications 40 cm from his eyes to see themclearly.

What should be the focal length of new glasses so that he canread again at 25 cm?

Answer & Explanation Solved by verified expert
4.1 Ratings (433 Votes)
The focal length of new glasses so that he can read again at 25 cm which will be given as To find the new near    See Answer
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