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Concept explainers
A dentist wants a small mirror that, when 2.00 cm from a tooth, will produce a 4.0× upright image. What kind of mirror must be used and what must its radius of curvature be?
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What kind of mirror must be used and must its radius of curvature be?
Answer to Problem 12P
Solution:
The mirror is concave, and radius of curvature is 5.33 cm
Explanation of Solution
As we know only concave mirror can produce magnified image.
Formula used:
Radius of curvature,
Here, v and f are image and focal length.
Magnification,
Calculation:
Image distance from the magnification,
The focal length,
Because the focal length is positive, the focal length is concave mirror.
Radius of curvature,
Chapter 23 Solutions
Physics: Principles with Applications
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