Giancoli 7th Edition textbook cover
Giancoli's Physics: Principles with Applications, 7th Edition
23
Light: Geometric Optics
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23-2: Reflection; Plane Mirrors
23-3: Spherical Mirrors
23-4: Index of Refraction
23-5: Refraction; Snell's Law
23-6: Total Internal Reflection
23-7 and 23-8: Thin Lenses
23-9: Lens Combinations
23-10: Lensmaker's Equation

Question by Giancoli, Douglas C., Physics: Principles with Applications, 7th Ed., ©2014, Reprinted by permission of Pearson Education Inc., New York.
Problem 57
Q

In a film projector, the film acts as the object whose image is projected on a screen (Fig. 23–59). If a 105-mm-focal-length lens is to project an image on a screen 25.5 m away, how far from the lens should the film be? If the film is 24 mm wide, how wide will the picture be on the screen?

Film projector, Problem 57.
Figure 23-59 Film projector.
A
do=10.5 cm, hi=5.8 md_o = 10.5 \textrm{ cm, } h_i = 5.8 \textrm{ m}
Giancoli 7th Edition, Chapter 23, Problem 57 solution video poster
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