Q.

Thermionic emissions are related to:

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a

none of these 

b

radiation

c

convection

d

conduction

answer is B.

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Detailed Solution

Thermionic emissions occur in metal and can be defined as the emission of electrons that transport current on heating.
It depends on the heat applied and the work function of the metal. Hence, Thermionic emissions are related to convection.

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Thermionic emissions are related to: