If the frequency and intensity of a light source are both doubled, show that the saturation photo-current remains almost the same.
2. Relevant Graph
The Attempt at a Solution
I am a high-school student. And I have not learnt any relation/equation between saturation photo-current and intensity.
I just know that on increasing the intensity of light, only the no. of photons emitted per unit time over a unit area, increases.
Thus, the no. of photons striking the metal surface increases.
Which in turn increases the no. of electrons coming out of the metal plate, thereby increasing the photo-current.
This thing is also observed experimentally, and is illustrated in the above link of the graph-image.
So i am not getting how the photo-current remains almost the same.