The equations in the options
represents Einstein photoelectric
equation EXCEPT
A. Emax = hf – Wo
B. hf = Emax + Wo
C. ½
= hf − Wo
D. Emax = hf + Wo
The equation that represents Einstein's photoelectric equation is C. ½ = hf - Wo.
To determine which equation represents Einstein's photoelectric equation, let's break down the options:
A. Emax = hf – Wo
This equation represents the maximum kinetic energy (Emax) of an ejected electron in the photoelectric effect, where h is Planck's constant, f is the frequency of the incident light, and Wo is the work function (the minimum energy required to remove an electron from a metal). This equation is a valid representation of the photoelectric effect.
B. hf = Emax + Wo
This equation rearranges the terms in option A, but still represents the same concept. It states that the energy of a photon (hf) is equal to the sum of the maximum kinetic energy (Emax) and the work function (Wo). So, this equation also represents the photoelectric effect.
C. ½ = hf - Wo
This equation does not represent Einstein's photoelectric equation. It sets a half (½) equal to the difference between the energy of a photon (hf) and the work function (Wo). This equation does not accurately describe the photoelectric effect.
D. Emax = hf + Wo
This equation represents the maximum kinetic energy (Emax) of an ejected electron in the photoelectric effect, where h is Planck's constant, f is the frequency of the incident light, and Wo is the work function. Similar to option A, this equation is a valid representation of the photoelectric effect.
Therefore, the equation that does NOT represent Einstein's photoelectric equation is C. ½ = hf - Wo.