CUET Preparation Today
The work function of caesium is 2 eV. This implies :
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It requires 2 eV energy for a cesium electron to jump from valence band to conduction band. It requires maximum 2 eV for an electron to break apart from the cesium surface. Both 1 and 2 It requires minimum 2 eV for an electron to emit from cesium surface. |
It requires minimum 2 eV for an electron to emit from cesium surface. |
Work function is defined as the minimum amount of energy needed by an electron to undergo photoemission. |
