Work function of a metal is

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11.Dual Nature of Radiation and matter

easy

The work function of a metal is

A

The energy for the electron to enter into the metal

B

The energy for producing $X-$ ray

C

The energy for the electron to come out from metal surface

D

None of these

Solution

(c) The work function is the minimum amount of energy (per photon) needed to eject an electron from the surface of a metal

Standard 12

Physics

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