The Photoelectric Effect Flashcards
What is threshold frequency
The minimum frequency an incident photon can have for an electron to be emitted
What is the Ek MAX dependent on
Frequency if the radiation not it’s intensity
What is the number of electrons emitted proportional to once last the threshold frequency
Intensity of the light
What does wave theory suggest the intensity of light should do
Determine the energy transferred to the electrons each second
What does wave theory suggest about threshold frequency
Energy should be spread evenly across the surface of the metal
Energy absorbed by each electron would gradually increase
After a while electrons get enough energy to be released
Why does a one on one interaction explain max ke is independent to intensity
Intensity is number of photons arriving per second
what is a work function
The bonds holding down electrons to the metal surface
Work function is energy needed to brewk these bonds
What is stopping potential
After emission Electrons pass through an electric potential and do work to move through this potential
If all energy is used up during this the electrons will stop
