Sam is nearsighted with a far point of 168 cm. What refractive power should be prescribed for Sam to see distant objects clearly, in Diopter?

University Physics Volume 3
17th Edition
ISBN:9781938168185
Author:William Moebs, Jeff Sanny
Publisher:William Moebs, Jeff Sanny
Chapter2: Geometric Optics And Image Formation
Section: Chapter Questions
Problem 137AP: A nearsighted man cannot see objects clearly beyond 20 cm from his eyes. How close must he stand to...
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Sam is nearsighted with a far point of 168 cm. What refractive power should be prescribed for Sam to see distant objects clearly, in Diopter?

Your answer needs to have 2 significant figures, including the negative sign in your answer if needed. (No unit is needed in your answer, it is already given in the question statement.)

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