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Photoelectric Effect Flashcards
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Photoelectric Effect Flashcards
Photoelectric effect
The process whereby electrons are ejected from a metal surface when light of suitable frequency is incident on that surface
Threshold frequency
The minimum frequency of light needed to emit electrons from a certain metal surface
Work function
The minimum energy that an electron in the metal needs to be emitted from the metal surface
Atomic absorption spectum
An atomic absorption spectrum is formed when certain frequencies of electromagnetic radiation that passes through a medium, e.g. a cold gas, is absorbed
Atomic emission spectrum
An atomic emission spectrum is formed when certain frequencies of electromagnetic radiation are emitted due to an atom's electrons making a transition from a high-energy state to a lower energy state
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Photoelectric effect
The process whereby electrons are ejected from a metal surface when light of suitable frequency is incident on that surface
Threshold frequency
The minimum frequency of light needed to emit electrons from a certain metal surface
Work function
The minimum energy that an electron in the metal needs to be emitted from the metal surface
Atomic absorption spectum
An atomic absorption spectrum is formed when certain frequencies of electromagnetic radiation that passes through a medium, e.g. a cold gas, is absorbed
Atomic emission spectrum
An atomic emission spectrum is formed when certain frequencies of electromagnetic radiation are emitted due to an atom's electrons making a transition from a high-energy state to a lower energy state