The stopping potential V₀ at a given frequency of incident light is

1. Stopping potential corresponds to maximum kinetic energy of photoelectrons. 2. K_max = eV₀; K_max depends on frequency and metal, not on intensity. 3. Increasing intensity increases saturation current but not stopping potential. 4. So V₀ is independent of intensity at a given frequency. _Source: syllabus Physics, Ch 11 "Dual Nature of Radiation and Matter", §11.4.2_