About
Topics
LightRefraction of light
Thin lenses
Description Thin Len Intensity
The intensity of the image for the object is reduced is some light path were blocked (the whole image is still there).Select from drop-down menu or drag to "block part of light path" button or drag lower end of the black line to lower position to block part of light paths.
The intensity is not the same if part of the light paths were blocked.
You can change the slit position and its width with mouse drag.
Sample Learning Goals
There is a common misconception among students:
Blocking part of the lens surface would block the corresponding part of the image.
Blocking part of the lens surface would block the corresponding part of the image.
Version:
- http://weelookang.blogspot.sg/2015/05/ejss-light-intensity-after-blocking-of.html
- http://weelookang.blogspot.sg/2012/10/ejs-open-source-lens-with-light-path.html
- http://iwant2study.org/lookangejss/04waves_13light/ejs/ejs_model_thinlensintensitywee.jar
- http://www.phy.ntnu.edu.tw/ntnujava/index.php?topic=219.0
Translations
Code | Language | Translator | Run | |
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Software Requirements
Android | iOS | Windows | MacOS | |
with best with | Chrome | Chrome | Chrome | Chrome |
support full-screen? | Yes. Chrome/Opera No. Firefox/ Samsung Internet | Not yet | Yes | Yes |
cannot work on | some mobile browser that don't understand JavaScript such as..... | cannot work on Internet Explorer 9 and below |
Credits
Fu-Kwun Hwang; lookang
end faq
Apps
https://play.google.com/store/apps/details?id=com.ionicframework.lightintensityapp228486&hl=en
Versions
- http://weelookang.blogspot.sg/2015/05/ejss-light-intensity-after-blocking-of.html JavaScript version EJSS Light Intensity After Blocking of Lens Model by Fu-Kwun Hwang and Loo Kang Wee
- http://iwant2study.org/lookangejss/04waves_13light/ejs/ejs_model_thinlensintensitywee.jar Digital Library Java version Light Intensity Model by Fu-Kwun Hwang and Loo Kang Wee
- http://www.phy.ntnu.edu.tw/ntnujava/index.php?topic=219.0 Java version What will happened if part of the light path were blocked by Fu-Kwun Hwang
Other Resources
end faq
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