NTNUJAVA Virtual Physics Laboratory
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Author Topic: Multiple Reflection from two plane mirrors  (Read 72365 times)
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Fu-Kwun Hwang
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on: June 20, 2006, 04:53:37 pm » posted from:Taipei,T'ai-pei,Taiwan

Registed user can get files related to this applet for offline access.
Problem viewing java?Add http://www.phy.ntnu.edu.tw/ to exception site list
If java program did not show up, please download and install latest Java RUN TIME
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Rays of lights are reflected from the mirror, each ray satisfying the
law of reflection.

It is fun to play with two plane mirrors, multiple images are
formed.

Would you like to try it with this java applet?



P.S. I have created another version of the same applet with EJS (2007/11/27).





Usage:
There are two plane mirrors with an initial angle of 120 degree.
Click the green circle and drag the mouse to change the angle.

The red circle (with yellow background) and the blue line on the left of
the mirror , represent the object to be play with.
Click inside the red circle or near the end of blue segment
and drag the mouse to change size/location/orientation
of the object.

Right click the mouse button to show the relations between images.

Rays of light will emit from the red circle if you click mouse button twice.

Find out the light paths and their relations to the images.

Play with it and enter the physics of optics.


Registed user can get files related to this applet for offline access.
Problem viewing java?Add http://www.phy.ntnu.edu.tw/ to exception site list
If java program did not show up, please download and install latest Java RUN TIME
There are 4 translations,
Higher number at the end means more translation been done.
or


*** There are 1 more attached files. You need to login to acces it!
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curlygrl200
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Reply #1 on: October 13, 2010, 10:43:55 am » posted from:Great Neck,New York,United States

Hi Mr. Hwang,

I'm Arabelle, I sent you a message before. This is the Applet I am really interested in. Could you by any chance send me the code?
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Fu-Kwun Hwang
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Reply #2 on: October 13, 2010, 12:33:14 pm » posted from:Taipei,T'ai-pei,Taiwan

Please download it by yourself. (attached file under the first message).
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curlygrl200
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Reply #3 on: October 15, 2010, 01:59:14 am » posted from:Great Neck,New York,United States

I am actually looking for the .java files, if possible.

I would need the java source code in order to modify your applet to work with 3 reflective surfaces instead of two.
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ahmedelshfie
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Reply #4 on: October 15, 2010, 05:38:39 pm » posted from:SAO PAULO,SAO PAULO,BRAZIL

like prof Hwang explain in him answer you will find Java source code, and you can
Download by your self, source code is attach file name is(image Java)
Please download it by your self the attach file up your first message.
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Fu-Kwun Hwang
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Reply #5 on: October 15, 2010, 06:28:25 pm » posted from:,,Taiwan

The name of the source code (file) is image.java
Please download it by yourself. (Just a click away!)
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sofia marah frias
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Reply #6 on: October 18, 2010, 02:03:12 pm » posted from:Sampaloc,Rizal,Philippines

Mr. Hwang,

Good day! I'm Sofia Marah P. Frias, a student of the University of the Philippines Diliman. I am currently conducting my research on multiple image formation and I found your java applet very useful and interesting. I would just like to request for your approval or consent so I could include your java applet as one of my references in my research.

Thank you for your time and I would be patiently waiting for your reply.



Sofia Marah Frias
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Fu-Kwun Hwang
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Reply #7 on: October 18, 2010, 05:29:47 pm » posted from:Taipei,T'ai-pei,Taiwan

You are welcomed to use it for your research purpose, please included links back to this URL when you use it. :-)
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curlygrl200
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Reply #8 on: October 21, 2010, 04:03:56 am » posted from:Great Neck,New York,United States

Hi Mr. Hwang,

My teacher and I have been in contact with you about editing this wonderful Applet using the source code. You said that a .java file is provided on this website, but this does not seem to be the case. There is a downloadable zip folder, and in this folder are html files and .class files, but no .java files. My teacher has tried opening the .class file with numerous compilers, but it simply does not work, possibly because of language conversion issues. We would really appreciate your help in obtaining the source code for this Applet. If you have a .java file of this Applet, could you please post it or email it to curlygrl200@aim.com. If you have any other suggestions on how to obtain the source code, please inform us. We appreciate your help sir, and we understand if there was some confusion on either one of our parts regarding the files available for download. Thank you!

Regards,
Arabelle Chafé
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curlygrl200
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Reply #9 on: October 21, 2010, 07:09:36 am » posted from:Great Neck,New York,United States

Never mind Mr. Hwang, I found it! Thanks a ton!
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sofia marah frias
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Reply #10 on: October 22, 2010, 06:04:40 pm » posted from:Makati,Manila,Philippines

Thank you, Mr. Hwang.  Smiley

Sofia Marah Frias
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koclup1580
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Reply #11 on: November 15, 2012, 12:29:19 pm » posted from:Bangkok,Krung Thep,Thailand

thank you... Smiley
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Life well spent is long. ..."da Vinci (1452-1519, Italian artist, sculptor, painter, architect, engineer and scientist) "
 
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