quantum

Question 1

What is the work function

Answer 1

The minimum amount of energy an electron needs to be able to escape the surface

Question 2

3 key observations from the photoelectric effect

Answer 2

1. Photoelectrons are only emitted if the radiation is above the threshold frequency. it doesn’t matter how intense the radiation is
2. If the radiation is above the threshold frequency then the emission of photoelectrons is instantaneous
3. Only way to increase the KE of electrons was to increase the frequency of the radiation