What did Einstein propose to explain the photoelectric effect?

5 Photoelectric Effect and UV Catastrophe

Quiz
•
Physics
•
12th Grade
•
Hard
Richard Lees
FREE Resource
13 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Light behaves purely as a wave.
Light is made of particles called photons.
Electrons emit light when they are heated.
The intensity of light is the key factor in ejecting electrons from metal.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the threshold frequency in the context of the photoelectric effect?
The maximum frequency of light that can be absorbed by electrons.
The frequency at which light begins to behave as a particle.
The minimum frequency of incident light required to eject electrons from a metal surface.
The frequency at which all electrons are ejected from the metal surface.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does the work function represent in the photoelectric effect?
The energy required to move an electron within the metal.
The maximum kinetic energy of ejected electrons.
The minimum energy needed to eject an electron from the metal surface.
The total energy of all ejected electrons.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How did Max Planck contribute to the understanding of the photoelectric effect?
By proposing that light could be absorbed or emitted in discrete quantities called quanta.
By discovering the electron.
By suggesting that light intensity is directly responsible for the photoelectric effect.
By proving that light behaves only as a wave.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What problem does the term "ultraviolet catastrophe" refer to?
The prediction that black bodies at low temperatures emit large amounts of ultraviolet light.
The failure of classical mechanics to explain the stability of atoms.
The observed decrease in energy emitted by a black body at ultraviolet frequencies.
The theoretical prediction of infinite energy radiated by a black body at high frequencies.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How does the quantum nature of light solve the ultraviolet catastrophe problem?
By limiting the energy that can be emitted at high frequencies.
By increasing the intensity of light at all frequencies.
By allowing infinite energy at ultraviolet frequencies.
By treating light as a continuous wave.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which equation correctly represents the relationship between the energy of a photon and its frequency?
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