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written by
Andrew Duffy and Mario Belloni
The Find the Focal Length JavaScript Model shows how a spherical mirror reflects the rays from a point source. The Model specifically asks the user to determine the focal length of the mirror. There are at least 4 different ways to find f.
The Find the Focal Length JavaScript Model was developed using the Easy Java/JavaScript Simulations (EjsS) modeling tool. You can modify this simulation if you have Easy Java/JavaScript Simulations (EjsS) version 5.2 or above installed by downloading and importing the zip file into EjsS.
Published June 20, 2016
Last Modified June 20, 2016
ePub version of the JS Model
Released under a Creative Commons Attribution-Noncommercial 3.0 license.
Published June 20, 2016
Last Modified July 28, 2018
This file has previous versions.
Source Code for the Find the Focal Length JS Model program.
Released under a This material is released under the Creative Commons Attribution-Noncommercial 3.0.
Published June 20, 2016
Last Modified June 20, 2016