Question

What is electrons emission ? What are various types of electron emission?

Answer 1

The electron emission is possible only if sufficient energy is known as electron emission

Types are:alpha particles and beta particles

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Answer 2

Thermionic Emission: In this type, the metal is heated to a sufficient temperature to enable the free electrons to come out of its surface. 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.