Question

write significance of work function ​

Answer 1

Answer:

The work function is important in the theory of thermionic emission, where thermal fluctuations provide enough energy to "evaporate" electrons out of a hot material (called the 'emitter') into the vacuum. ... Thermionic emission can be used to measure the work function of both the hot emitter and cold collector.

Explanation:

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Answer 2

Explanation:

The work function is important in the theory of thermionic emission, where thermal fluctuations provide enough energy to "evaporate" electrons out of a hot material (called the 'emitter') into the vacuum. ... Thermionic emission can be used to measure the work function of both the hot emitter and cold collector.