February 21, 2017

Homework Help: physics

Posted by Andy on Sunday, March 14, 2010 at 11:42pm.

A 17.1 cm focal-length lens is used to project 35 mm slides onto a screen 4.77 m from the projector lens. What must be the width of the screen ( m) if the image of the slide is to just fill the screen? The width of the image on the slide is 34.3 mm.

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