NCERT · Class 12 · Physics · Dual Nature of Radiation and MatterWhat happens to the maximum kinetic energy of photoelectrons if the intensity of incident light is increased?
Step-by-Step Solution
If the intensity of incident light of a given frequency is increased, the maximum kinetic energy of the emitted photoelectrons remains completely unchanged. An increase in light intensity only increases the total number of photons striking the metal surface per second, which increases the number of emitted photoelectrons (photoelectric current), but the energy of individual photons remains dependent solely on frequency, not intensity.
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