Light, Brightness and Distance

Our experimental data was not what we expected. Our power regression fit does not quite match up with our experimental data. Our data shows that as you increase the distance of the sensor from the light source the intensity decreases. Although the intensity decreases our experimental data does not follow an inverse square law.
A few of factors may explain why our information was a little wacky. First, our sensor was probably too close to the light source during the first two trials. They were exactly 760.0 which our group believes is the maximum measurement for this probe. Therefore, the first two measurements were not valid. Second, ambient light sources around the room needed to be reduced. This could have been done by shutting the overhead lights off or perhaps at least shading the probe. Lastly, our distance measurements may have been slightly off due to the fact that the light source was hidden in the black box.