Figure (a) shows the basic structure of a camera. A lens can be moved forward or back to produce an image on film at the back of the camera. For a certain camera, with the distance i between the lens and the film set at f= 5.18 cm, parallel light rays from a very distant object O converge to a point image on the film, as shown. The object is now brought closer, to a distance of p = 107 cm, and the lens- film distance is adjusted so that an inverted real image forms on the film (Figure (b)). (a) What is the lens-film distance i now (in cm)? (b) By how much (in cm) was distance i changed? 1º (a) Film (b) 2

Figure (a) shows the basic structure of a camera. A lens can be moved forward or back to produce an image on film at the back of the camera. For a certain camera, with the distance i between the lens and the film set at f= 5.18 cm, parallel light rays from a very distant object O converge to a point image on the film, as shown. The object is now brought closer, to a distance of p = 107 cm, and the lens- film distance is adjusted so that an inverted real image forms on the film (Figure (b)). (a) What is the lens-film distance i now (in cm)? (b) By how much (in cm) was distance i changed? 1º (a) Film (b) 2

Inquiry into Physics

8th Edition

ISBN:9781337515863

Author:Ostdiek

Publisher:Ostdiek

Chapter9: Optics

Section: Chapter Questions

Problem 14P: . (a) In a camera equipped with a 50-mm focal-length lens, the maximum distance that the lens can be...

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