4. Briefly discuss how near sightedness is corrected using a lens. Support your discussion by constructing a ray diagram.

Glencoe Physics: Principles and Problems, Student Edition
1st Edition
ISBN:9780078807213
Author:Paul W. Zitzewitz
Publisher:Paul W. Zitzewitz
Chapter17: Reflections And Mirrors
Section: Chapter Questions
Problem 40A
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Learning Task 3- Practice makes perfect. Read each item carefully and answer as
required.
1. The diagram below shows two light rays emanating from the top of the object and
incident towards the mirror. Describe how the reflected rays for these light rays can
be drawn without actually using a protractor and the law of reflection.
2. A 2.80-cm diameter coin is placed a distance of 25.0 cm from a convex mirror that
has a focal length of -12.0 cm. Determine the image distance and the diameter of
the image.
3. A magnified, inverted image is located a distance of 32.0 cm from a double convex
lens with a focal length of 12.0 cm. Determine the object distance and tell whether
the image is real or virtual.
4. Briefly discuss how near sightedness is corrected using a lens. Support your
discussion by constructing a ray diagram.
Transcribed Image Text:Learning Task 3- Practice makes perfect. Read each item carefully and answer as required. 1. The diagram below shows two light rays emanating from the top of the object and incident towards the mirror. Describe how the reflected rays for these light rays can be drawn without actually using a protractor and the law of reflection. 2. A 2.80-cm diameter coin is placed a distance of 25.0 cm from a convex mirror that has a focal length of -12.0 cm. Determine the image distance and the diameter of the image. 3. A magnified, inverted image is located a distance of 32.0 cm from a double convex lens with a focal length of 12.0 cm. Determine the object distance and tell whether the image is real or virtual. 4. Briefly discuss how near sightedness is corrected using a lens. Support your discussion by constructing a ray diagram.
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