Photoelectric Effect vs. Wave Model

AI Thread Summary
The photoelectric effect cannot be explained by the wave model of light, as it shows that the energy of ejected electrons is dependent on the light's frequency rather than its intensity. In the wave model, higher brightness would imply greater energy, but experiments demonstrate that even dim light at a high frequency can eject electrons. Additionally, electrons are emitted almost instantaneously, contradicting the wave model's expectation of a delay. This phenomenon highlights the particle-like behavior of light, necessitating a quantum perspective for accurate explanation. Understanding these concepts requires more than just basic references; deeper exploration is essential.
Mei
Messages
1
Reaction score
0
What are some things about the photoelectric effect that can not be accounted for in the wave model of light?
 
Physics news on Phys.org
Too lazy to read wikipedia articles?
Or do you have a specific questions to the things mentioned there?

In addition, if you think of light as waves, a single electron would need ages to get enough energy to leave the metal.
 
The main puzzling fact is that the energy of the ejected electrons does not depend on the brightness of the light and in normal circumstances this is what we associate withe the energy of light.
Bright light means more energy.
The energy of ejected electrons depends on the colour(frequency) of the light and you would not normally associate this with energy.
Also electrons are ejected almost instantaneously and the should be a long time delay if the wave picture was true.
You will need to search 'Wiki!' to find a simple, consise explanation. Wiki is a good reference source but, in my opinion, it is not a good teaching source.
 
Thread 'Motional EMF in Faraday disc, co-rotating magnet axial mean flux'

Thread 'Motional EMF in Faraday disc, co-rotating magnet axial mean flux'

So here is the motional EMF formula. Now I understand the standard Faraday paradox that an axis symmetric field source (like a speaker motor ring magnet) has a magnetic field that is frame invariant under rotation around axis of symmetry. The field is static whether you rotate the magnet or not. So far so good. What puzzles me is this , there is a term average magnetic flux or "azimuthal mean" , this term describes the average magnetic field through the area swept by the rotating Faraday...
View full post »

Similar threads

Are there articles on Classical computation of the Photoelectric Effect?
Replies
21
Views
1K
Does the Photoelectric Effect Prove the Particle Nature of Light?
Replies
1
Views
1K
Explaining the Photoelectric Effect: Why Can't Classical Electromagnetism Do It?
Replies
4
Views
3K
What properties of waves causes the photoelectric effect
Replies
1
Views
2K
Photoelectric effect -- direction of the electron's trajectory
Replies
2
Views
2K
"Violating" Einstein's Photoelectric Effect Model - Comments
Replies
4
Views
2K
Photoelectric effect in the study of a luminous diode (LED)
Replies
2
Views
2K
B Photoelectric phenomenum can only be proved as a particle effect?
Replies
5
Views
1K
Photoelectric Effect: Frequency vs. Amplitude
Replies
1
Views
1K
Photoelectric effect and bound electrons
Replies
3
Views
1K

Hot Threads

Recent Insights

Back
Top