1. The problem statement, all variables and given/known data A metal gives off photoelectrons with maximum kinetic energy Kmax at the rate of N per second when a beam of light of wavelength λ shines on it. How will Kmax and N change if the intensity (brightness) of light is doubled? Assume 100% efficiency. 2. Relevant equations hc/wavelength=? then. P/?= h=planks constant c= speed of light p=power 3. The attempt at a solution kinetic energy will remain the same n will double Im not sure how to do this problem if the brightness doubles, will the frequency double? or the wavelength? and im not sure how that would affect n per second so what im basically asking is. Is the intensity of light related to the frequency, and if so, in what way?