Lensmaker’s Formula

Here’s something we provide in advance to help you with one of the HW problems. We’ll motivate this next time.

The thin lens equation, known as the “Lensmaker’s formula:”

See Text pages 1082-1085 for details and example

http://wug.physics.uiuc.edu/courses/phys112/fall97/acts/lect25/act25c/sld001.htm

Rɬ if convex when light ray hits it

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