Light of a certain frequency is shone on a metal surface – electrons escape.why does the kinetic energies vary?
Photoelectric effect is one of my favorite topics Imagine light with a certain frequency, f, has energy E = hf Then the surface of the metal has a property called work function. It is defined as minimum energy required to remove a delocalised electron from the surface of any given metal. & Ek represents the kinetic energy of the ejected electron Imagine you have USD20 You hire me to do work for you, but I need USD15 then only I agree. Then the extra USD5 will help me to fly out of the house Imagine I can fly The full equation is E (incoming) = W+ Ek hf = W + Ek 20 = 15 + 5 Theoretically speaking, the kinetic energy should be constant. Can you provide more details to your question?
