CBSE · Class 12 · Physics · Dual Nature of Radiation and MatterDefine stopping potential in relation to photoelectric emission.
Step-by-Step Solution
Stopping potential is defined as the minimum negative (retarding) potential applied to the anode with respect to the cathode for which the photoelectric current becomes zero. It provides a direct measure of the maximum kinetic energy of the emitted photoelectrons because the work done by the stopping potential is equal to the maximum kinetic energy possessed by the fastest photoelectrons escaping the metal surface.
💡 Study Guide: This question tests core syllabus concepts from Dual Nature of Radiation and Matter. For formulas, key summaries, and mock exam reference guides, read the full Dual Nature of Radiation and Matter Revision Notes.