Which one of the following equations is correct for the maximum kinetic energy of photoelectrons ejected from a metal? A) K_max = hc - W_o B) K_max = hλ - W_o C) K_max = hf - W_o D) K_max = hλ/c - W_o E) None of the other choices is correct.

Question

Quizplus · Accepted Answer

The equation for the maximum kinetic energy of photoelectrons ejected from a metal is given by K_max = hf - W_o, where h is Planck's constant, f is the frequency of the incident light, and W is the work function of the metal. Choice C is the only one that uses the correct variable for frequency (f) instead of wavelength (λ) or angular frequency (ω).

Which One of the Following Equations Is Correct for the Maximum