Concept explainers
A converging lens with a focal length of 40 cm and a diverging lens with a focal length of –40 cm are 160 cm apart. A 2.0-cm-tall object is 60 cm in front of the converging lens.
a. Use ray tracing to find the position and height of the image. To do this, accurately use a ruler or paper with a grid. Determine the image distance and image height by making measurements on your diagram.
b. Calculate the image height and image position relative to the second lens. Compare with your ray-tracing answers in part a.
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