Cesium has a work function of 2.1 eV.What is the kinetic energy of an electron produced when green light (540 nm)is incident on a cesium metal surface? (1 eV = 1.60 $\times$ 10^-¹⁹ J)

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The Answer of Cesium has a work function of 2.1 eV.What is the kinetic energy of an electron produced when green light (540 nm)is incident on a cesium metal surface? (1 eV = 1.60 $\times$ 10^-¹⁹ J)

Cesium Has a Work Function of 2 ×\times× 10-19 J)

Cesium Has a Work Function of 2 $\times$ 10^-¹⁹ J)