(III) In a film projector, the film acts as the object
Chapter 23, Problem 57P(choose chapter or problem)
\(\text { (III) }\) In a film projector, the film acts as the object whose image is projected on a screen (Fig. 23–59). If a \(\text { 105-mmfocal-length }\) lens is to project an image on a screen \(25.5 \mathrm{~m}\) away, how far from the lens should the film be? If the film is
\(24 \mathrm{~mm}\) wide, how wide will the picture be on the screen?
FIGURE 23–59 Film projector, Problem 57.
Equation Transcription:
Text Transcription:
(III)
105-mmfocal-length
25.5 m
24 mm
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