Wave - Particle Duality Flashcards
1
Q
Define the work function
A
Minimum energy to carry out photo emission
2
Q
Explain why there is a dotted line on a Ek and F graph
A
Once the threshold frequency is reached photoemission occurs, the energy is then ejected and the electron increases with frequency
3
Q
Dissect Ek= hf-hfø
A
Ek= electrons emitted
hf= photons of light
hfø= metal
4
Q
Correct conditions for photo emission
A
UVC light
Zinc plate metal
Negative charge
5
Q
Evidence for light being a wave
A
Diffraction
Interference
Polarisation
6
Q
Evidence for light being a particle
A
Mathematics
Line Spectra
Photo electric effect
