Light Intensity Graphs

 

A contour plot of light intensity from a central point source

Open a new MathematicaŽ notebook and use your data from the CBLŽ activity and copy

the data to the example function below.

 [Graphics:Images/IntensityGraphs_gr_1.gif]

[Graphics:Images/IntensityGraphs_gr_2.gif]

Your contour plot of the data should look similar to the graph below.

[Graphics:Images/IntensityGraphs_gr_3.gif]

A graph of light intensity function  E=[Graphics:Images/IntensityGraphs_gr_4.gif].

Plot your CBLŽ data and explain the relationship between intensity and distance.

Your graph should look similar to the one below.

[Graphics:Images/IntensityGraphs_gr_5.gif]

[Graphics:Images/IntensityGraphs_gr_6.gif]

A 3-D plot of light intensity from a central point source.

In order to see a 3 dimensional graph of your CBLŽ data, enter the data into a Plot3D function.

[Graphics:Images/IntensityGraphs_gr_7.gif]

Your 3D plot should be similar to the one below.

[Graphics:Images/IntensityGraphs_gr_8.gif]

Write a summary of the results that you got and discuss the relationships between light

intensity and distance from light source.  Predict what the values would be given a different

light intensity (stronger or weaker) and what the graphs would look like.


Converted by Mathematica      July 16, 2002