CBSE · Class 12 · Physics · Dual Nature of Radiation and MatterDefine work function in the context of the photoelectric effect.
Step-by-Step Solution
The work function is defined as the minimum amount of energy required by an electron to escape from the metal surface completely without imparting any kinetic energy to it. It is a characteristic property of the metal and depends entirely on the nature of the metal surface. It is usually denoted by the symbol ( \phi_0 ) or ( W ) and is measured in electron volts (eV).
💡 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.