In Other Words, Work Function Is Equal To The Minimum Work That Must.
The minimum amount of energy required by an electron to eject from the metal surface is called work function. Different materials have different values of work function. Albert einstein used the work function of a metal to describe the photoelectric effect.
(I) The Nature Of The Metal (Ii) The Conditions Of The Metal Surface.
∅= χ+kt/e ln (nc/n) where ∅, χ, nc, n, k and t are the work function, electon affinity, density of. The present work has two Hence, the work function of the metal, denoted by w, must be the energy of a photon with this frequency.
The Work Function Ip Is Often Nsed In Lieu Of The Electrochemical Potential Of A Metal, Because The Electrochemical Potential Of A Metal Is Difficult To Determine Experimentally , Whereas Tp Is Readily Accessible From Vacuum Photoemission Data.
Different materials have different values of work function. Where, ‘k’ is the kinetic energy, ‘h’ is the planck’s constant and the value of h is h = 6.625. The work function depends on:
Ag (Theoretical) Are Denoted As Continuous And Dotted Lines, Respectively.
Work function of a material is given by. It is denoted by ϕ. The frequency of emission given to us is, v= 6 × 10 14 h z.
It Is Denoted By Φ 0.
Conductive materials like metals have relatively low work functions. If an amount of energy greater than the work function is transferred to an electron, the barrier is overcome and the electron is freed of its bond. It is a property of material.