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Question

(C) Einstein's photoelectric equation is given by ${E_k = h
u - \phi}$.In this equation,${h
u}$ is the energy of the incident photon and ${\phi}$ is

Vedclass · Accepted Answer

Maximum kinetic energy of the emitted electrons

Vedclass · Answer

(C) Einstein's photoelectric equation is given by ${E_k = h
u - \phi}$.In this equation,${h
u}$ is the energy of the incident photon and ${\phi}$ is the work function of the metal surface.When a photon strikes the metal surface,it transfers its energy to an electron.Some energy is used to overcome the work function $({\phi})$,and the remaining energy is converted into the kinetic energy of the electron.Since electrons can be emitted from different depths within the metal,they lose varying amounts of energy due to collisions before escaping.Therefore,the electrons escaping from the surface with the least energy loss possess the maximum kinetic energy.Thus,${E_k}$ represents the maximum kinetic energy of the emitted photoelectrons.

Einstein's photoelectric equation states that ${E_k} = h\nu - \phi$. In this equation,${E_k}$ refers to:

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