I am a relative novice in terms of mathematics, but I am trying to understand how to approach a problem I have.
I have an area light source that is 0.5 m² that produces 3500 luminous flux.
As I understand it, light has a falloff that follows the inverse square law.
How would I approach finding the luminous flux of a smaller version of the light that is 0.2 m² without remeasuring the output?
Is there a way to scale the original light source while taking into account the inverse square law?
Any nudge in the right direction would be appreciated.