Exam Hack | CIE A2 Physics | Structured | Quantum Physics Question (Patreon)

I misspoke at "08:16" (although corrected myself a few minutes after). I was just explaining a situation of increasing intensity and allowing for a possible varying frequency of light, although that is possible this will never be the case for you. (You will always be dealing with a constant frequency of incident light).

To be clear, for a CONSTANT frequency of incident light an increase in intensity (Intensity = Power/Area = (Energy/time)/Area) simply means an increase in the amount of photons hitting the surface per unit time, as this would mean an increase in the rate of flow of energy over a unit area of the surface (NOT an increase in the energy of individual photons, as an increase in the energy of the photons would mean an increase in the frequency of the incident light as "E = h*f").

Hence, an increase in intensity (for a constant frequency of light) means an increase in ejected electrons (as we will have more photons per unit time hitting the surface). Time "11:59" is the correct explanation for you and the exam questions you will encounter. 

Sorry for any confusion but please ask in the comments if this is unclear.