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Blackbody Radiation: Frequency and Wavelength Documents

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Main Document

Blackbody Radiation: Frequency and Wavelength 

written by Jose Ignacio Fernández Palop

The Blackbody Radiation: Frequency and Wavelength model simulates the blackbody radiation curves of Planck both as a function of frequency and as a function of wavelength to allow for comparison of the two functions. The Planck radiation law can be derived both as a function of frequency and as a function of wavelength. In doing so, one gets two slightly different expressions for the energy density per frequency (wavelength) as a function of frequency (wavelength.  Shown in the main window is a schematic of a blackbody cavity showing (on the right) the color of the radiation emitted. The graph plots the energy density per frequency (wavelength) as a function of frequency (wavelength and shows the visible spectrum. One can switch between the two functions by using the radio buttons provided. A slider alows the twmperature to be set or changed.

The Blackbody Radiation: Frequency and Wavelength model was created using the Easy Java Simulations (EJS) modeling tool.  It is distributed as a ready-to-run (compiled) Java archive.  Double clicking the ejs_qm_blackbody_fw.jar file will run the program if Java is installed.

Last Modified June 2, 2014

This file has previous versions.

Source Code Documents

Blackbody Radiation: Frequency and Wavelength Source Code 

The source code zip archive contains an XML representation of the  Blackbody Radiation: Frequency and Wavelength Model.   Unzip this archive in your EJS workspace to compile and run this model using EJS.

Published December 12, 2010
Last Modified June 2, 2014

This file has previous versions.

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