einstein`s photoelectric equation is actually another example of conservation of energy. please explain how this applies?
2007-05-23 03:18:57 · 3 answers · asked by >() 1 in Science & Mathematics ➔ Physics
Photon has energy E = hf
Photon pops off an electron. Some of the energy is used up getting the electron over the potential hump at the edge of the metal, so it is turned into potential energy. The rest is seen as kinetic energy in the electron shooting out.
E photon = hf = work function + KE of electron
2007-05-23 03:23:20 · answer #1 · answered by Anonymous · 0⤊ 0⤋
The energy of the photon is completely conserved:
Part of it (the work function) removes the electron from the metal. The remaining energy of the photon is conserved in the kinetic energy of the electron.
2007-05-23 03:21:48 · answer #2 · answered by hcbiochem 7 · 0⤊ 0⤋
because it takes a photo of the electricity, simple, there are now two electricities
2007-05-23 03:21:47 · answer #3 · answered by Anonymous · 0⤊ 0⤋