Question

Cesium is often used in “electric eyes” for self-opening doors in an application of the photoelectric effect. The amount of energy required to ionize (remove an electron from) a cesium atom is 3.89 electron volts (1 eV = 1.60 x 10^-19 J). Show by calculation whether a beam of yellow light with wavelength 5850 Å would ionize a cesium atom.

Energy of the light beam =________eV

Would a beam of yellow light with wavelength 5850 Å ionize a cesium atom? _____(No/Yes)

Answer 1

thanks and hope you like the answer

Here uese lE-hy.ornud a u又 E- 19.875 (024.ゴ Sq-90, 3.39 x16" g. 118 ev (3.89ev)