Richardson's law explains the emission of electrons due to?
Light
Heat
Magnetic Fields
Pressure
Answer
Heat is the cause of electrons being emitted according to Richardson's law. This phenomenon, known as thermionic emission, occurs when thermal energy provided to a material overcomes the work function, the energy barrier that binds electrons to the material's surface. As temperature increases, so does the kinetic energy of electrons, enabling them to escape and create an electric current when collected by an adjacent electrode.
Journey through the Genius: Exploring the Life of Owen Willans Richardson
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