The minimum heat energy required to emit an electron from the surface of a metal is called _______.

Extracting function

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Work function

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Threshold energy

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None of the above

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Solution

The correct option is B Work function
The minimum heat energy required to emit an electron from the surface of a metal is called work function.

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The minimum amount of heat energy required to emit an electron from a metal surface is called

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600 n m

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