Light intensity from a source on a solar panel at different distances

[corduroyyy]

Hi, I'm a junior and I have been assigned a lab that I has completely me blown away! We are to find the intensity of our given light source on a solar panel at different distances. My partner and I understand how to complete the lab, but there is another part of the grade. We are assigned to write 3 pages about the intensity of light and we don't even know where to start. If anyone could point us in the right direction for valid information on the topic, that would be fantastic. (:

 

[LowlyPion]

Welcome to PF.

Maybe this would be a good jumping off point:
http://en.wikipedia.org/wiki/Intensity

 

[corduroyyy]

Welcome to PF.

Maybe this would be a good jumping off point:
http://en.wikipedia.org/wiki/Intensity

Oh sweet. Thank you, this will help a lot. (: