10. In a photoelectric effect experiment, light of wavelength gum is incident on plates made from each of the elements listed below. Which of the following is true? m \"0"" Photoelectrons will be ejected from all 3 plates (j > 3' l Photoelectrons will be ejected from the Cadmium and Calcium plates only Photoelectrons will be ejected from the Cesium plate only Photoelectrons will be ejected from the Cadmium plate only Photoelectrons will be ejected from the Cesium and Calcium plates only W909\