The height of the mirror (to view full image)

[Fu-Kwun Hwang]

If you want to see your own body in front of a mirror. The height of the mirror did not need to be the same as your height. Actually, you only need mirror with half of your height. Why?
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You can adjust those two small circles in the center two adjust the position and height of the mirror.
You can also drag the red circle to see the light paths started from that point.

Embed a running copy of this simulation
<applet code='users.ntnu.fkh.mirrorHeight_pkg.mirrorHeightApplet.class' archive='http://www.phy.ntnu.edu.tw/ntnujava/ejsuser/2/ejs_mirrorHeight.jar' name='mirrorHeight963' id='mirrorHeight963' width='789' height='434' mayscript=true><param name='draggable' value='true'></applet>
Embed a running copy link(show simulation in a popuped window)
<a href='http://www.phy.ntnu.edu.tw/ntnujava/msg.php?smfejs=963' target='smfejs'>Run simulation</a>

Full screen applet or Problem viewing java?Add http://www.phy.ntnu.edu.tw/ to exception site list
Press the Alt key and the left mouse button to drag the applet off the browser and onto the desktop. This work is licensed under a Creative Commons Attribution 2.5 Taiwan License

• Please feel free to post your ideas about how to use the simulation for better teaching and learning.
• Post questions to be asked to help students to think, to explore.
• Upload worksheets as attached files to share with more users.

Let's work together. We can help more users understand physics conceptually and enjoy the fun of learning physics!

You are welcomed to check out related simulation:Watching yourself in front of a mirror

[lookang]

think there is an error here.

Java Plug-in 1.6.0_14
Using JRE version 1.6.0_14-b08 Java HotSpot(TM) Client VM
User home directory = C:\Documents and Settings\lookang

load: class users.ntnu.fkh.mirrorHeight_pkg.mirrorHeightApplet.class not found.
java.lang.ClassNotFoundException: users.ntnu.fkh.mirrorHeight_pkg.mirrorHeightApplet.class
   at sun.plugin2.applet.Applet2ClassLoader.findClass(Unknown Source)
   at java.lang.ClassLoader.loadClass(Unknown Source)
   at java.lang.ClassLoader.loadClass(Unknown Source)
   at sun.plugin2.applet.Plugin2ClassLoader.loadCode(Unknown Source)
   at sun.plugin2.applet.Plugin2Manager.createApplet(Unknown Source)
-*-
   at java.security.AccessController.doPrivileged(Native Method)
   ... 7 more

deleted the rest of the message cos it is very long

[Fu-Kwun Hwang]

I just update the jar file. It should be fine now.