Hi there, My name is Anar Kazimov and I want to carry out an experiment related to the sensitivity of the photosensors(photodiode,photoresistors and etc.). To find their sensitivity I am going to change the distance, from the light source to the sensors, and compare the change in output voltage(see the circuit). But the problem is that I am a high school student and I don't know how to describe my experiment more scientifically. Can I say something like this: "The sensitivity of the photosensors to the change in lumen flux"? I am hesitating in this description because lumen flux doesn't change with the distance from the light source, then what quantity should I use to describe the sensitivity of photosensors? Kind regards.