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Giancoli's Physics: Principles with Applications, 7th Edition
23
Light: Geometric Optics
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23-2: Reflection; Plane Mirrors
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23-3: Spherical Mirrors
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23-4: Index of Refraction
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23-5: Refraction; Snell's Law
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23-6: Total Internal Reflection
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23-7 and 23-8: Thin Lenses
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23-9: Lens Combinations
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23-10: Lensmaker's Equation
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Question by Giancoli, Douglas C., Physics: Principles with Applications, 7th Ed., ©2014, Reprinted by permission of Pearson Education Inc., New York.
Problem 44
Q

A certain lens focuses light from an object 1.55 m away as an image 48.3 cm on the other side of the lens. What type of lens is it and what is its focal length? Is the image real or virtual?

A
0.368 m. Convex lens, making a real image.
Giancoli 7th Edition, Chapter 23, Problem 44 solution video poster
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