Sam purchases +2.0-D eyeglasses which correct his faulty vision to put his near point at 25 cm. (Assume he wears the lenses 2.0 cm from his eyes.) Solve Parts 1A, 1B, 1C. Question 2 1A) Calculate the focal length of Sam's glasses, in meters. Question 3 1B) Calculate Sam's near point without glasses, in meters.

Sam purchases +2.0-D eyeglasses which correct his faulty vision to put his near point at 25 cm. (Assume he wears the lenses 2.0 cm from his eyes.) Solve Parts 1A, 1B, 1C. Question 2 1A) Calculate the focal length of Sam's glasses, in meters. Question 3 1B) Calculate Sam's near point without glasses, in meters.

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter25: Optical Instruments

Section: Chapter Questions

Problem 13P: An individual is nearsighted; his near point is 18.0 cm and his far point is 50.0 cm. (a) What lens...

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Concept explainers

Applications Of Reflection Of Light

When a light ray (termed as the incident ray) hits a surface and bounces back (forms a reflected ray), the process of reflection of light has taken place.

Sign Convention for Mirrors

A mirror is made of glass that is coated with a metal amalgam on one side due to which the light ray incident on the surface undergoes reflection and not refraction.

Question

Sam purchases +2.0-D eyeglasses which correct his faulty vision to put his near point at 25
cm. (Assume he wears the lenses 2.0 cm from his eyes.) Solve Parts 1A, 1B, 1C.
Question 2
1A) Calculate the focal length of Sam's glasses, in meters.
Question 3
1B) Calculate Sam's near point without glasses, in meters.

1C) Pam, who has normal eyes with near point at 25 cm, puts on Sam's glasses. Calculate Pam's near
point with Sam's glasses on, in meters.

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