Physlets run in a Java-enabled browser on the latest Windows & Mac operating systems.
If Physlets do not run, click here for help on updating Java and setting Java security.
Problem 35.9: Find the focal length of each lens in the 2-lens system
Please wait for the animation to completely load.
A light source is located to the left of two lenses (position is given in centimeters). You can click-drag the left lens through a limited range of x positions. The right lens will move in tandem. Find the focal length of each lens. Restart.