From the theory is known that the energy which is radiated outward radically in three-dimensional space from a source is inversely proportional with the square of the distance from the source. This process is known as the Inverse square law. In this lab the student can measure the power from the light sources with a given distance and a fix step size.

The primary aims of the lab are:

  • Understand basic about light sources
  • Understand the behavior the radiation power of a light bulb
  • Understanding how the emitted power evolves over distance