Monday, December 12, 2011
If a slide of width 36 mm (see the figure below) is to be projected onto a screen of 1.20 m width located 16.0?
If a slide of width 36 mm (see the figure below) is to be projected onto a screen of 1.20 m width located 16.0 m from the projector, what focal length lens is required to fill the width of the screen?
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