P. Optical Phenomena Flashcards

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1
Q

Describe the Photoelectric Effect

A

The process whereby electrons are ejected from a metal surface when light of a suitable frequency is incident on that surface

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2
Q

Define Threshold Frequency

A

The minimum frequency of light needed to emit electrons from a certain metal surface

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3
Q

Define Work Function

A

The minimum energy that an electron in the metal needs to be emitted from the metal surface

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4
Q

What is Atomic Absorbtion

A

Is when certain frequencies of electromagnetic radiation passing through a substance are absorbed

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5
Q

What is Atomic Emission

A

Is when certain frequencies of electromagnetic radiation are emitted due to an atom making a transition from a higher energy state to a lower energy state

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