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The image of a tree is measured to be 1.7 mm high. It is to be projected onto a screen 8.0 m from the slide,
The image of a tree is measured to be 1.7 mm high. It is to be projected onto a screen 8.0 m from the slide, and is to appear 559 mm high. What focal length lens (in meters) is needed?
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Mathematical Physics With Applications, Problems And Solutions
Authors: V. Balakrishnan
1st Edition
9388264827, 9789388264822
