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Question
Mention any two types of electron emission.
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Solution
·
Field Emission: In this type, a
very strong electric field is applied to the metal which pulls the electrons
out of the surface due to the attraction of the positive field.
·
Photoelectric Emission: In this type, the
light of a certain frequency is made to fall on the metal surface which leads
to the emission of electrons.
· Field Emission: In this type, a very strong electric field is applied to the metal which pulls the electrons out of the surface due to the attraction of the positive field.
· Photoelectric Emission: In this type, the light of a certain frequency is made to fall on the metal surface which leads to the emission of electrons.
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