Photoelectric Effect Flashcards
Threshold frequency
Unique to the metal, the threshold frequency is the minimum frequency the light must have if it were to photoelectrically emit electrons from the metal
True/False: A higher intensity of light with frequency above threshold increases the amount of electrons released
True
What is the photoelectric effect
When light is incident on a metal surface, electrons on the surface absorb photons from the light and gains energy of the photon
Work Function
The minimum energy required for an electron to escape the surface of the metal.
What happens to excess energy from the photons when absorbed by electrons?
They become Kinetic Energy
Stopping Potential
When an electrons are attracted back to the metal by giving a sufficient positive charge