Giancoli's Physics: Principles with Applications, 7th Edition
23
Light: Geometric Optics
Change chapter23-2: 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?
Figure 23-59 Film projector.
A
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COMMENTS
By robertkevinbartholomewsr on Tue, 4/16/2024 - 12:52 AM
If the is 24 mm wide, how wide will the picture be on the screen? i solved for m then multipled the screen width by m. M= 25.5 m/0.105 m= 243 243× 24 mm= 5829 mm or 5.8 m wide.
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