An object 1.30 cm high is held 3.00 cm from a person's cornea, and its reflected image is measured to be 0.167 cm high. What is the magnification? magnification: Where is the image?

University Physics Volume 3
17th Edition
ISBN:9781938168185
Author:William Moebs, Jeff Sanny
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Chapter2: Geometric Optics And Image Formation
Section: Chapter Questions
Problem 37P: An object 1.50 cm high is held 3.00 cm from a person’s cornea, and its reflected image is measured...
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An object 1.30 cm high is held 3.00 cm from a person's cornea, and its reflected image is measured to be 0.167 cm high. What is
the magnification?
magnification:
Where is the image?
image distance:
cm
Find the magnitude of the radius of curvature of the convex mirror formed by the cornea.
magnitude of radius of curvature:
cm
Note: This technique is used by optometrists to measure the curvature of the cornea for contact lens fitting. The instrument used
is called a keratometer, or curve measurer.
Transcribed Image Text:An object 1.30 cm high is held 3.00 cm from a person's cornea, and its reflected image is measured to be 0.167 cm high. What is the magnification? magnification: Where is the image? image distance: cm Find the magnitude of the radius of curvature of the convex mirror formed by the cornea. magnitude of radius of curvature: cm Note: This technique is used by optometrists to measure the curvature of the cornea for contact lens fitting. The instrument used is called a keratometer, or curve measurer.
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