1. The problem statement, all variables and given/known data Electromagnetic radiation of wavelength λ and Intensity I, when incident on a metal surface, causes n electrons to be ejected per unit time. The maximum kinetic energy of the electrons is Emax. State and explain the effect, if any on n and Emax when the wavelength λ is reduced but the intensity I is unchanged. 2. Relevant equations E=hf, and I'm not sure what else 3. The attempt at a solution I solved this question with 2 different teachers, the first said that n will not change as I is unchanged. The other said that n will reduce because: number of photons=Intensity/energy of 1 photon I trust both teachers so I'm really confused now.