Question

Work function for a metal will change if
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Answer 1

Answer:

Explanation:The work function of a metal, Φ, is the minimum amount of energy required to elicit the ejection of a photon. It is typically exhibited in units of eV (electron volts) or J (Joules). ... The kinetic energy of the ejected electron is equivalent to the work function of the metal subtracted from the energy of a fired photon.

Answer 2

Work function is the minimum energy required to eject electron.

• The electron emission, from the metal required minimum energy to ejected electron below that energy there will be no emission.

• In the photoelectric emission is base on this concept. There is always important photon energy should be greater than the work function, then the electron will be ejected otherwise it will not.

• The work function does not depend upon the wavelength and frequency.