4. A slide projector has a converging lens whose focal length is 141.00 mm. (a) How far (in meters) from the lens must the screen be located if a slide is placed 146.85 mm from the lens? If the slide measures 24.0 mm (width) x 36.0 mm (height), what are the magnitudes of the (b) width (in mm) and (c) height (in mm) of its image?

a.

b.

c.

5. (a) For a diverging lens (f = -16.0 cm), find the image distance for an object that is 16.0 cm from the lens. (b) Determine the magnification of the lens.

a.

b.

6. Concept Simulation 26.3 reviews the concepts that play a role in this problem. A converging lens has a focal length of 57.00 cm. A 11.0-cm-tall object is located 158.0 cm in front of this lens. (a) What is the image distance? (b) Is the image real or virtual? (c) What is the image height? Be sure to include the proper algebraic sign.

a.

b.

c.

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