7) A slide projector has a 100 mm-focal length lens.a. How far away is the screen if a slide is placed 103 mm from the lens and produces a sharp image? b. If the slide is 24.0 by 36.0 mm, what are the dimensions of the image? c. Draw a principal ray diagram for this situation, using the given object height in part (a) and focal. Be sure each diagram contains the three principal rays discussed in class. You do not need to use a ruler, protractor, or graph paper, but make a reasonable attempt to draw the diagram to scale by eye.

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